When Donna discovers a rat loose in the house, she immediately moves herself and the kids in with her mother, Dee Dee, leaving Cleveland home alone to hunt down the rodent. Cleveland takes advantage of having the house to himself and soon bonds with his new pet and best friend “Rat Lauer.” Meanwhile, Rallo and Jr. pretend they’re spies, but things get out of hand when Junior won’t reveal what’s in his secret briefcase.

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