Baby Shark and his friends follow clues of the Treat Goblin, only to discover that Goldie has been creating the scary sounds and huge chomps to deter them. Goldie eventually dresses up as the Treat Goblin to scare them away.

Baby Shark and his friends are confronted by the 'Treat Goblin,' but Baby Shark recognizes Goldie. They demand their treats back, teaching Goldie a lesson about taking things without asking.

Mayor Anchovy has lost the key to the city, which he needs for an important visit from Mayor Squids. Baby Shark offers to help, curious to see his mom in action at work.

Baby Shark accidentally sends Mayor Anchovy through the mail tubes while trying to find the key. With Mayor Squids about to arrive, Baby Shark bravely steps in to impersonate Mayor Anchovy, showcasing his ability to handle big problems and make important decisions.

Baby Shark is excited to teach his new pet, Teensy the tardigrade, some tricks. However, he forgot to keep her warm and she wanders off into the dangerous purple lava fields. Baby Shark goes after her, realizing his responsibility as a pet owner. He eventually finds Teensy and brings her home to her warm snuggle moss.

Baby Shark recounts his adventure of losing and finding Teensy to his parents. He admits to making a mistake but also took responsibility. His parents reassure him that making mistakes and taking responsibility is part of learning, and Teensy seems to think he's ready to continue being a pet owner. Baby Shark shows off Teensy's new trick, wearing tiny sunglasses.

Baby Shark and William embark on an emergency Code Orange mission, navigating through a water warp to accomplish their task. They celebrate their success with seaweed sundaes.

Baby Shark is trying to figure out who the 'masked fishy' is, a culprit who has been causing trouble backstage. He initially suspects himself but eventually deduces that Hank, the star of the play, is the masked fishy. It turns out Hank has stage fright, and didn't want to let Goldie down by not performing.

With Hank's stage fright revealed, Goldie steps up to take the spotlight, singing and dancing, showcasing a special performance. Baby Shark reflects on his love for solving mysteries.

Mommy Shark is working from home and Baby Shark wants to help. He misunderstands, literally 'chomping' her paperwork in half, turning it into confetti. Mommy Shark teaches him the importance of asking for clarification and working together to finish tasks.

Mommy Shark's hole punch breaks, but Baby Shark creatively uses his powerful jaws to accurately 'hole punch' the report, saving the day. They celebrate their teamwork and efficiency.

Baby Shark learns about the 'Treat Goblin,' a notorious thief who has stolen their party treats. He learns about the goblin’s fearsome reputation and decides to investigate.