While she is out shopping, Kim comes across a stray Chihuahua roaming the streets. After unsuccessfully trying to find its owner, she can't bear to leave it behind and decides to take it home with her. Just when she decides to keep the dog, Kim is shocked to learn that the dog is very ill and needs around-the-clock care which she can't give. Heartbroken, Kim is devastated when she must say goodbye. Meanwhile, Bruce thinks Rob has become too comfortable after moving back home so he comes up with a plan to pressure Rob to move out of the house.