When Cate and C.J. discover that Kerry has been e-mailing Bruno -- the boy she had a fling with in Europe -- they secretly try to snoop in her computer to find out what the two have been up to. But unbeknownst to them, Bruno is in the house and hidden in the attic by Kerry, while Bridget tries her best to talk her little sister out of doing something she may regret. Meanwhile, Jim discovers Rory's clandestine poker game and decides to deal himself in to teach Rory and his friends a lesson about gambling.

After watching the film "Freaky Friday," Cate awakens to find that she has switched bodies with Bridget, C.J. has changed places with Jim, and Rory has swapped places with his hamster. The only one not affected is Kerry - who begins to find the entire mishap amusing.