The dalmatian family are having a holiday at Cornwall where they meet a surfer Doberman named Spike, an intelligent Collie named Summer, and a "sweet" cow named Bessie.
This episode features examples of:
- Almost Kiss: An almost "lick-snout" kiss from Dylan to Summer when they part ways. Unlike Spike with Dolly, Dylan hesitates and awkwardly pets Summer's nose.
- Amazingly Embarrassing Parents: Doug. When Dolly and Spike get stranded with him and Delilah:Doug: Gonna introduce us to your boyfriend?
Dolly: Ugh! He's just a friend!
Doug: Oh, well, then you won't mind me telling him all about Dolly's first chew toy!
Dolly: Dad! No! Ugh! You're so embarrassing!
Delilah: Only noticing that now? - Amusing Injuries: Dylan goes through a bunch of them trying to follow Bessie's directions to the beach.
- Are We There Yet?: The puppies keep asking this during the opening song, much to their parents' frustration.
- Ax-Crazy: Bessie the cow.
- Big Brother Instinct: When Dylan hears Dizzy and Dee Dee are looking for pirate treasure in the caves, he immediately rushes off to get them.
- Bishie Sparkle: In Spike's introduction, courtesy of the water he's emerging out of.
- Bitch in Sheep's Clothing: Bessie. She appears to be kind and harmless, but she's really malicious, devious, sneaky, and hates city dwellers.
- Blank White Eyes: Dante gets these one of the many times Bessie scares him over the course of the episode.
- Blowing a Raspberry: Dizzy and Dee Dee do this before ignoring Dylan's pleas for them to stop looking for pirate treasure in the caves.
- Breaking the Fourth Wall: The second part begins as it recaps the bus running out of control. During this, Dante says, "Previously on… 101 Dalmatian Street!" before he resumes screaming.
- Cassandra Truth: Dante is completely right to not trust Bessie the cow, but Dylan keeps ignoring him.
- Chekhov's Gunman: Chips the seagull shows up for a few gags throughout the episode before helping save the dogs trapped on an island in the climax.
- Cover Innocent Eyes and Ears: Dawkins covers Dorothy's eyes when Delilah and Doug prepare to jump out of the bus to save the kids.
- Digging Yourself Deeper: Dylan keeps accidentally insulting Summer's intelligence in his first conversation with her.
- Disproportionate Retribution: The reason Bessie sought to kill the entire Dalmatian family? Because a few of them bothered her earlier on.
- Double-Meaning Title: The word "Summer" in the title could be referring to both the dalmatians going on summer vacation, and to Summer the collie.
- Dressed to Plunder: Dee Dee and Dizzy dress up in an eye patch and a tricorner hat respectively in their quest for pirate treasure.
- Gilligan Cut: When Dolly is cuddling with Spike at the party at the end of the episode.Dolly: Can't believe we're going home tomorrow. I hope that never comes. [hard cut to the morning] Tomorrow already?
- Glowing Eyes of Doom: After Dolly and Spike leave to save Delilah and Doug, a "rock" in the background gets a pair of these, revealing it to be Bessie's silhouette.
- Holding Hands: Dylan tries to hold paws with Summer as they watch the stars together, but it's ruined by Chips vomiting on his paw.
- Horrible Judge of Character: Dylan. He doesn't trust most of the Cornwall locals, but instantly believes Bessie is friendly and harmless. Doesn't realize that he was dead wrong about everyone until the end.
- Hypocritical Humor: When Dante voices his suspicions about Bessie, Dylan tells him to quit dissing the locals, even though he's been doing just that the whole episode.
- I Warned You: Dante says this when Dylan finally sees Bessie's true colors.Dante: I hate to say "I told you so", but... I'm gonna anyway. Told you so.
- Karma Houdini: Bessie suffers no punishment for her actions, other than to watch the Dalmatian family leave safe and sound.
- Leaning on the Fourth Wall: Just as the family begins their journey to Cornwall, Dolly starts singing, while Dylan tries to tell her that they do not have time for a musical number.
- Literal Cliffhanger: Part 1 ends this way, with the dalmatians' bus on the tip of on a cliff with the sea below them.
- Lots of Luggage: Dylan and Dolly show off how they pack for the vacation: Dolly is just bringing her skateboard, while Dylan brings a small library contained in multiple large suitcases, and says that's him "packing light," though considering his paranoid tendencies he claims it's to be well-prepared.
- Love at First Sight: This is Dylan's reaction when he spots Summer through the bus window. Dolly reacts even more extremely when she first sees Spike.
- Multi-Part Episode: This episode is split into two parts.
- Murder Is the Best Solution: Bessie has an irrational hatred of city folk and would rather kill the dalmatians than just wait for them to leave.
- Once More, with Clarity:
- In one scene in the first part, Chips the seagull seemingly tries to carry off Dorothy, only to be stopped by Dylan. In part 2, Summer reveals he actually saved her from being pulled out at sea by a wave.
- At the end of the episode, we get a montage of Bessie sabotaging things for the family as Dylan realizes she was a Bitch in Sheep's Clothing all along.
- Parental Sexuality Squick: G-rated version. Dylan and Dolly are grossed out when they think their parents are about to kiss, and even more so when they actually see it.
- Puppy Love: Literally. Dylan and Summer, as well as Dolly and Spike.
- Stargazing Scene: Dylan and Dolly have one together with their respective love interests. Dylan and Summer point out the stars. Dolly and Spike don't get it.
- Theme Tune Extended: The soundtrack version of the "Dogs Are Out For Summer Sun" musical number is extended, with an additional verse about how Dylan just wants to go stargazing while in Cornwall, since light pollution makes it difficult in London.
- Translation by Volume: Dylan does this when talking to Bessie, even though she's speaking perfectly understandable English back.
- Wingding Eyes: Dolly gets heart eyes when Spike introduces himself.
- Your Other Left: When Summer is leading Dylan and Dante through the caves and telling Dylan to go left. He claims he was just testing her.
