The 4th chapter of Xenoblade Chronicles 1. Chapter 4 centers around Shulk and Reyn's journey up the Bionis' thigh towards the other Homs settlement, Colony 6, which resides at the top of the titan's leg. They come across Sharla's refugee camp along the way as it turns out that Colony 6 was already overrun by the Mechon.
1) Heading for Colony 6
On the Bionis' knee, Shulk and Reyn look around Kneecap Hill for a way to continue up, which they see that they have to climb up the nearby cliffs.2) The Bionis' Leg
Starting from the Bionis' knee, Shulk and Reyn begin their climb up towards Colony 6. They arrive at the Gaur Plain grassland on the Bionis' thigh, which something smoking in the distance catches their attention.3) The Vision
Shulk and Reyn come across a crashed smoking buggy on the Gaur Plain. When Shulk touches the buggy, he ends up having a Monado vision of a young Homs boy being attacked by two rhinoceros-like Ardun creatures by a patch of water, which Shulk and Reyn head off to find him.4) The Boy at the Oasis
Shulk and Reyn find the Homs boy at a Gaur Plain oasis, and save him from the Arduns.5) To the Homs Camp
Thanking Shulk and Reyn for the rescue, the Homs boy introduces himself as Juju. After Shulk manages to fix up Juju's buggy, the latter offers to show Shulk and Reyn the Homs camp he came from, which they agree to follow along.6) Sharla and Juju
Shulk, Reyn, and Juju arrive at a Homs camp where a young woman that leads it named Sharla turns out to be Juju's older sister. Shulk ends up having a Monado vision of Sharla being killed by a Mechon that's holding Juju captive along with an image of the Bronze Face-Mechon. After the vision, Sharla scolds Juju for trying to return to Colony 6 while assuming that Shulk and Reyn are reinforcements. However, Shulk and Reyn reveal that they're actually on a journey from Colony 9 to travel through Colony 6. Shulk and Reyn start to get a sense something bad must have happened to Colony 6, which Sharla reveals the bad news that Colony 6 has been taken over by the Mechon.7) The Tragedy of Colony 6
Sharla explains what happened to Colony 6 where they were caught unprepared by a sudden Mechon attack just like what happend to Colony 9. That Sharla and Juju were tasked to help evacuate the citizens while the colony leader, Otharon, and Sharla's fiance, a soldier named Gadolt, stayed behind to fight the Mechon and cover for the escaping citizens. Sharla explains how she runs the Colony 6 refugee camp to continue protecting them, but Juju desires to retake Colony 6, and begs Shulk and Reyn to take him along knowing that they're journeying to said colony. However, Sharla orders him not to, which results in Juju storming off.Eventually, Shulk, Reyn and Sharla hear Juju's buggy driving off. Realizing that Juju is headed for Colony 6, and the need to go rescue him, Shulk reveals to Reyn and Sharla of the vision he saw where Juju gets taken captive by a Mechon in some sort of valley (leaving out the part where he saw Sharla die). Given that Juju's her brother, Sharla desires to tag along, but finds the claim of Shulk seeing future visions hard to believe. In return, Reyn assures her that it's the truth as he wouldn't be alive now if it wasn't for Shulk's visions. Sharla agrees to go along with it, and they head off to save Juju while Shulk thinks to himself that he will change the future where he saw Sharla die.
8) A New Ally
Shulk's group decides to head for Raguel Bridge since it's the main path towards Colony 6 that Juju would have to take to get there. Along the way, Shulk, Reyn, and Sharla discuss working together, which Sharla assures them that she can pull her own weight fighting with them as a ranged field medic. Meanwhile, Juju turns out to have crashed his buggy on Raguel Bridge, which he decides to continue on foot towards Colony 6.9) The Abandoned Buggy
Shulk and company arrive at Raguel Bridge, and come across Juju's crashed buggy. When Shulk touches the buggy like before, he has another Monado vision where he sees Juju being attacked by a Mechon in a valley. Sharla informs Shulk of a nearby valley that's on the way to Colony 6, which they begin to trek towards it.10) Where Did Juju Go?
Shulk's group continue along the path towards Colony 6 until Reyn questions if Juju went elsewhere since there's still no sight of him. However, Sharla remains convinced that Juju's not stupid enough to go off the beaten path, which they continue on towards the valley.11) Shulk's Power
Shulk and company arrive at Spiral Valley; named after its spiral pathways between the valley levels. They find Juju having already been caught by a powerful Mechon M71 contraption, which Sharla charges ahead to save her brother. Refusing to allow his vision to happen where he saw Sharla die during the charge, Shulk manages to unlock the Monado's Speed ability, and casts it out upon Sharla. This allows for Sharla to dodge the Mechon strike in time that proved fatal in the vision. With the new Monado Speed skill unlocked, Shulk's group takes on the Mechon M71 in order to save Juju.12) Pursuing the Mechon
After supposedly defeating the Mechon M71, it escapes with Juju to a higher level of Spiral Valley, which Shulk and company chase after it up the spiral ramp.13) The Talking Face
Shulk and company battle the Mechon M71 atop Spiral Valley until there's an opening for Reyn to jump in and grab Juju. The Mechon M71 is then defeated as the group celebrates their victory while Sharla's relieved to have Juju back at her side. However, Shulk remains worried given that he hasn't seen the Bronze Face-Mechon yet from his vision. Sure enough, the Bronze Face-Mechon finally appears before them while claiming that he's interested in fighting the "Monado-boy," much to everyone's shock that they've come across a Mechon that can talk. The result is Shulk's group battling it out with the Bronze Face-Mechon, who appears to be larger and bulkier than Metal-Face.14) Juju Kidnapped
During the battle, the Bronze Face-Mechon manages to take Juju captive, and just like what happened with Metal-Face, Shulk's group is unable to hurt the Face-Mechon due to the Monado being unable to damage it. The battle then comes to a sudden end due to the Bronze Face-Mechon running low on power, and has to head off to recharge. Flying away while still holding Juju captive, the Bronze Face-Mechon yells back at Shulk challenging him to a rematch at Colony 6 as Sharla's forced to watch her younger brother get taken away.Long Summaries
Turning her attention to Shulk and Reyn, Sharla assumes by their gear that they must be survivors of Colony 6, and grabs Reyn demanding to know about the state of the colony, and if Gadolt made it out. Reyn remains confused as to what she's talking about, which Shulk informs her of how the two of them are from Colony 9, much to her confusion. Juju introduces Sharla to Shulk and Reyn as his saviors from the Arduns. In return, Sharla properly introduces herself to them being Juju's older sister. Juju also informs his sister that he offered Shulk and Reyn to stay at the camp, which Sharla accepts.
Realizing something's amiss, Reyn asks if something happened at Colony 6. Shulk adding that travelling there is part of their goal. The disheartened Sharla reveals that the colony, their original home, was taken over by the Mechon. Sharla asks Shulk and Reyn to come along into the camp so that they can talk privately about the current situation.
Sharla reveals that Gadolt was set to be her husband, but instead of worrying that he may be dead by now, she remains convinced that Gadolt and the other Colony 6 soldiers are still fighting. Knowing that Shulk and Reyn are aiming to head to Colony 6, Juju pleads to have them take him along. An argument breaks out between Sharla and Juju. The former wanting to help the refugees and keep the camp safe while the latter wants to fight believing that the Mechon must have cleared out to attack Colony 9.
Juju calls out Sharla for being afraid of the Mechon, and calls her heartless for leaving the remaining survivors to die. Shulk sees the Sharla and Juju death vision to the tentacle Mechon again, which Reyn proceeds to scold Juju for disrespecting her sister. This causes Juju to leave claiming that he'll make dinner. Seeing Reyn scold Juju, Sharla mentions that he acts a lot like Gadolt, who acted as a father figure to her little brother. Reyn notices Shulk keeping quiet asking if he saw another vision, which Shulk admits he did. The three then hear the sound of the buggy driving off.
Shulk, Reyn, and Sharla quickly realizes that Juju once more drove off on his own to Colony 6. Knowing that something bad's about to happen, Shulk informs them of the vision he saw; a valley surrounded in flames where a Mechon ends up killing Juju along with a Face-Mechon that might be Metal-Face. Shulk and Reyn start heading off to save Juju only for Sharla to stop them as she's confused as to what's going on. Reyn reveals to her that Shulk has the power to see the future, which Sharla finds hard to believe. Shulk assures her that while he doesn't fully understand it just yet, the vision of Juju dying will come true if they don't stop it.
Reyn adds that he believes it as he wouldn't be alive right now if it wasn't for Shulk's visions. Despite still not believing it, Sharla agrees to go along with it since she has nothing else to go on to find Juju. Seeing Reyn take command to find Juju, Sharla once more claims that he's acting like Gadolt, which Reyn questions if she's just treating him as a Gadolt substitute. As Reyn and Sharla walk on, Shulk's left thinking to himself that he left out the part where he saw Sharla die in the vision as well. Given that he can't stop her from going, Shulk remains worried as to how he's going to be protecting her, but he then assures himself that he will change the future.
Due to Shulk wanting to save Sharla from death, a new light-blue symbol appears on the Monado. Shulk asks if he can truly save her, which he hears the voice of the man he saw in his dream telling him that it's a given he can. Shulk tests out the new Monado ability and casts it out at Sharla. The result is her being shrouded in an aura that increases her speed to dodge the tentacle that would have hit her in the vision. Thus, revealing that what Shulk unlocked the Monado Speed ability. With the help of the new speed ability unlocked, Shulk's group take on the Mechon M71.
Reyn questions if it's Metal-Face, but Shulk answers that it's not. Unsurprisingly, a Bronze Face-Mechon, the one who knows about their arrival on the Bionis' knee, and much bulkier than Metal-Face, suddenly arrives at their location. It states that it's been waiting for the "Monado-boy," much to everyone's shock that they've just now met a Mechon that can talk. After hearing about the damage done to Metal-Face, the Bronze Face-Mechon belittles Shulk having believed the latter to be a big scary monster, yet he's just a little boy. Said Face-Mechon then battles it out with Shulk's group.