When Lola and Charlie arrive at Marv's for a trip to the park, they find they can't go because Marv's Mom has lost her handbag, which has the keys for the house. Meanwhile, Marv's dog Sizzles is behaving naughtily. Marv is sure that Sizzles is untrainable and incorrigible, but Lola isn't so sure. Marv lets her and Charlie take him home, and they devise a training program with an inspired idea.