After discovering baby Hana walking on the ceiling, Kim and Ron try to get to the bottom of her secrets. Soon, they are called by Master Sensei and Yori, who ask them to help stop Monkey Fist, who has found a new ally in Yono the Destroyer as he continues his search for the secret weapon.

Things get out of control when Ron and Bonnie become the homecoming king and queen. Now Kim has two problems to deal with – a computer expert seemingly kidnapped by Señor Senior, Jr. and Bonnie making a move on her boyfriend.