Milo, Melissa, Zack, and Mort's band enters the battle of the bands, where Zack discovers his old boy band is competing.

Milo, Zack and Melissa go to school after sunset to retrieve Melissa's math book. Unfortunately, she leaves the spare key inside the locked classroom, so the three go on a "quest" in search of the mysterious janitor, otherwise known as the "key-keeper".

Milo, Zack and Melissa set out in search of a missing robot that previously escaped.

Elliot gets to see what the world would be like without Milo.

Milo, Cavendish, and Dakota travel back to 1965 and inspire the creation of Dr. Zone only to encounter a sinister plot to take over the world.

Milo and his friends and family decide to finally attempt to finish a board game.