Grover and Stacy Beindorf (Kyle Howard and Amy Sakasitz) thought they had the only functional family left on the block–that is until their parents (Jamie Lee Curtis and Kevin Pollak) broke the news that they planned to separate. But these two kids don’t take the news lying down. Trying to rekindle the spark, Grover and Stacy throw their parents a surprise anniversary party, complete with a Hawaiian beach replicated in the almost-finished basement. But when the staged second honeymoon dissolves into a battleground, the kids excuse themselves, run upstairs … and lock the door. Grover tells his parents that they will have to stay together until they decide to, well, stay together. In effect, they’re grounded.