In the first episode, six ordinary bunnies gain superpowers after an accident with Dr. Fuzzleglove's grilled cheese machine set to the 'Super Duper' setting. The powers are: Handsome Steve can fly, Midnight Bun Bun has shadow powers, Bex controls electricity, Derek can grow in size, and Stumpy discovers he has elasticity powers.

The bunnies come together after Dr. Annabelle finds Stumpy and introduces him to the others who already have powers. They bond over getting tacos and then face their first challenge when Dr. Fuzzleglove tries to recruit them for evil and attacks them with a mind-controlled sea monster, leading to their first battle as a team.

The antagonist is Dr. Fuzzleglove, a local chocolatier who created the grilled cheese machine accident. He tries to recruit the bunnies to join him in evil and uses a mind-controlling helmet to command a large sea monster to attack the bunnies during their lunch.

During the fight with the sea monster, Stumpy realizes his power is elasticity when he stretches his arms to grab the sea monster's tentacle. He then distracts Dr. Fuzzleglove, steals his mind-controlling helmet, and causes the sea monster to flick Fuzzleglove far away, helping the team win their first battle.

The grilled cheese machine accident is the catalyst that transforms six ordinary bunnies into superheroes by granting them their unique powers. This event sets the entire story in motion, leading to the formation of the Super Duper Bunny League and their fight against Dr. Fuzzleglove's evil plans.