Calvin accidentally messes up his clothes on the day of the Ultimate Hero Challenge. Luckily, ROBO G helps him create a brand new outfit, just in time.

Calvin has lost ROBO G's birthday present. It's now being held captive by a mysterious underwater creature that loves shiny objects. Can he summon his PLAY POWER and find it?

There's mess everywhere at HQ! Luckily ROBO G has created Tidy Bot, a robot that makes tidying into fun games. But a stinky sock makes Tidy Bot malfunction!

Brrrrrrr! HQ is super chilly thanks to ROBO G's new extreme air conditioner. Can Calvin use his PLAY POWER to return the temperatures to normal, or will a wily Yeti spoil his plans?

When Kaison's car gets tangled and breaks down, Calvin and ROBO G try to fix it fast with their FAST FIXIT machine.

It's time for the ULTIMATE RACE DAY - on a race track built in the Kid Cave. But when the track gets broken mid race, Calvin's car is headed for a disaster.