The science fair at Kyle and Mia's school is going great until the mice from a classmate's experiment make a break for it! With two runaway mice on the loose, it leads to some unexpected mice capades.

When Kyle and Mia discover three abandoned kittens, they know they have to help. Kyle and Mia take turns caring for the kittens, but they both already have pets of their own. Will they be able to find the perfect home for the kittens they've come to love?

When Kyle and Mia come across a dog with a collar but no tags, they're not sure what to do. The dog seems to miss his owner, but no one has reported him missing. Kyle and Mia don't know where to start. Will they ever track down the doggone dog's real home?

When Savannah Gregory blows out her knee - and her shot at a gymnastics scholarship - she decides she's done with the sport forever. Without gymnastics, she has more time for her best friend, Cassie. She's content to let her fun, impulsive best friend plan a memorable senior year. That is, until Cassie tries to kill herself.Savannah wants to understand what happened, but Cassie refuses to talk about it and for the first time, Savannah has to find her own way. The only person she can turn to is Marcos, the boy who saved Cassie's life. Being with him makes her see who she could be and what she really wants: gymnastics. But Cassie doesn't approve of Marcos or of Savannah going back to gymnastics, and the tighter she tries to hold on to Savannah, the farther it pulls them apart. Without Cassie to call the shots, Savannah discovers how capable she is on her own - and that maybe her best friend's been holding her back all along.

When Rex starts causing trouble at Dr. Blake's vet clinic, Kyle knows something has to change. He decides to take Rex to the dog park for training, where he makes a new friend with a problem pup of his own. Can the two boys work together to teach their dogs some manners before it's too late?