It's science to the rescue when Arthur's pet lizard goes missing. The kids work together to get Mooshu - and Arthur's toy helicopter - down off the roof.
Iggy designed an awesome skate park but has more fun watching his friends enjoy it. The kids build a high-tech nurse bot to help Mom Twist fight the flu.
Rosie's convinced she needs bigger muscles to karate chop her way through a wooden board. The kids make a metal detector to find a missing time capsule.