Spitelout arrives on Dragon's Edge to inform his son that he has been chosen to take a ceremonial axe to a union between their family (the Jorgensons) and Astrid's (the Hoffersons), and that Astrid and Hiccup have to go as family representatives, but a new dragon threatens to ruin everything. Meanwhile Fishlegs and Ruffnut get married.
Tropes:
- Accidental Marriage: Ruff and Tuff mention having never been to a wedding, so Fishlegs demonstrates a fake wedding with Ruffnut, only for Tuff to remember he learned about the procedure when he took a lesson to be ordained, which means the fake wedding was legally binding. Subverted at the end of the episode where it was revealed that because Tuffnut’s mentor fell off a cliff before he could complete his training, him marrying his sister and Fishlegs is not official.
- All for Nothing: Snotlout and company arrive at the union late and see everything destroyed, but it turns out that the union had been canceled long before Snotlout was supposed to show up. Though a silver lining is that Snotlout is praised by his father for making the journey.
- Brick Joke: Tuffnut went into officiate training. At the end, Snotlout reminds Tuffnut that he never finished his training because his teacher jumped off a cliff.
- Call-Back:
- Hiccup and Astrid remind Snotlout of all the times he's messed up; Snotlout retorts with Never My Fault. Specifically, stealing the Changewing eggs ("Fishlegs' fault"), releasing the Skrill ("Twins' fault"), and stranding them on Outcast Island ("Act of Thor").
- Snotlout thinks to use the Smokebreaths from Breakneck Bog to get the axe back.
- Call-Forward: Fishlegs and Ruffnut get married, temporarily. In the second movie, he's hitting on her, to her displeasure.
- Chekhov's Boomerang: Snotlout thinks to train the Smokebreaths from Breakneck Bog to steal the axe back.
- Determinator: Nothing will stop Snotlout from getting his axe.
- Domestic Abuse: Ruffnut is emotionally abusive to Fishlegs, from moving his stuff to making him get rid of Meatlug.
- Driven to Suicide: What happened to Tuffnut's officiate teacher during their first lesson. Tuffnut notes that it happens to a lot of officiates.
- Henpecked Husband: Fishlegs when temporarily married to Ruffnut.
- Heroic BSoD: The Armorwing curls up and hides its face when it realizes that it can't stop the Smokebreaths from taking its armor away.
- I Owe You My Life: The riders gain the Armorwing's trust by saving it from the Smokebreaths.
- Ironic Name: Griplout, the Jorgenson with no arms. He wasn't able to do the ceremony due to not being able to hold the axe with his teeth.
- Nice Job Breaking It, Hero: Snotlout drops the axe while playing with it carelessly in the air.
- Noodle Incident: One of Snotlout's relatives lost both his arms in "a freak mutton accident". Apparently he couldn't keep a good grip on his axe with his teeth. The mind boggles...
- Oh, Crap!:
- Snotlout when he drops the axe while flying.
- Fishlegs when he realizes that Tuffnut accidentally married him and Ruffnut.
- "Shaggy Dog" Story: Snotlout delivering an axe, which is a ceremonial honor. He doesn't get there in time, but the wedding had been canceled due to a brawl breaking out.
- Ship Tease: Ruffnut and Fishlegs temporarily get married. Ruffnut's more into it than Fishlegs is, though at the end Fishlegs says his door is open.
- So Proud of You: Spitelout tells Snotlout this for working so hard to get the axe to the ceremony.
- Tempting Fate: Astrid asks Who Would Be Stupid Enough? to marry into Snotlout's family. It turns out her family is, and they want her and Hiccup to attend the wedding to represent their tribes.
- Throw the Dog a Bone: Finally Snotlout gets genuine approval from his dad and a hug.
- Who Would Be Stupid Enough?: Astrid asks this about who would marry a Jorgenson. A Hofferson, apparently.
- Yank the Dog's Chain: Right after Snotlout reveals that giving the ceremonial axe is an honor given to the best in the family, Spitelout reveals that Snotlout was fourth choice, after himself and two other relatives, including one with no arms.
- You Are Too Late: Snotlout, Hiccup and Astrid arrive too late for the ceremony, but they find out that it was cancelled.
