When Herb and Judith go away for the weekend they leave their new baby, who Alan still thinks is his, with Judith's recovering-addict mother, Lenore. Soon after Herb and Judith hit the road, Lenore calls on Alan for help and Alan heads over to Judith's to make sure everything is ok. Once there he discovers that Lenore has fallen off the wagon, and she proceeds to try and seduce him. Meanwhile, Charlie runs over a cat he thinks is Chelsea's and immediately takes action to hide the truth from her. However, Jake takes a picture of Charlie with the dead cat and uses it to blackmail him.