The Norths meet their new neighbor, Tommy Clarkson, when he tumbles down the stairs and lands at their feet. He claims someone's been trying to kill him. After Pam's purse gets switched with that of his Aunt Laura, she goes to the Clarkson apartment and finds the young man nearly dead on the floor. With Lt. Weigand now involved, Pam goes snooping on her own and uncovers the reason someone desperately wants Tommy dead before his 21st birthday.