''The Legendary Golden Egg: Part 2'' is the fifth episode of the Sunnyside School series.
Combo thinks of how to keep the golden egg he earned in the previous episode, and how he was told to keep it safe. As he goes to school, King Collector's plan is revealed. He goes to Combo's house, disguised as him, and borrows bananas, Combo's mom's necklace, and the golden egg. Back at school, Peck shows Combo his new invention, a calculator that acts like a phone. Combo's mom calls her son and says about the things ''he took'', and he quickly realizes that King Collector has stolen the golden egg. The gang enters the secret lair, and tells the computer where King Collector is. After that, They think of a plan to earn the golden egg back. Combo and Gil fight with King Collector to get the golden egg. The first two give King Collector another golden egg they claim is the real one. The ''real golden egg'' turns out to be fake, as Peck hatches from it and takes the actually real egg and Combo's mom's necklace and save they day. The remains of the fake golden egg explode, causing King Collector's ship to malufunction. The group then hides the real egg in the lab, with a security system and everything. They leave the lab, with Peck about to study the egg.