Stan and Roger have a big fight and Stan says he does not care about Roger, and Francine decides to show Stan he DOES Care. By pretending to kidnap Roger. But things do not go as planned when Stan does not show up to help Roger (because he knows it was Francine because of caller ID). Roger is now forced to make a decision- be nicer to people, or not come back to the Smiths' house.
Good episode. I liked: Stan beating up Roger at the end, Francine always sticking up for Roger, Stan and Francine on the roof, etc. I realized upon watching, this is really similar to an episode of The Simpsons, in which Burns becomes nicer to people, and realizes soon after he basically needs to be mean, which is what happens here. It's kind of funny but I think this show handled this type of plot a lot better and funnier than Simpsons did. A+ episode, no doubt.