When Mrs. Beady tries to run for mayor, Otis decides to run for mayor against her to avoid Mrs. Beady from exposing them as talking animals. Their competition goes horribly out of control, however.

Under Abby's request, Otis takes in a clam that she rescued from a nearby café. However, the clam is a rude and demanding house guest. It hogs the shower, Pig hanged up on a radio contest that Otis was calling to for temperatures in the barn, it takes over the barn at bedtime and, to make matters worse, it reproduces many party-going clams. Otis believes that Abby will get in trouble with the farmer once he finds out she is the one who brought all the clams into the farm and decides to relax while the other animals are stuck with the millions of clams. Soon they do not want to leave and instead bile Otis when he tells them to get out. Now, the animals must figure out how to calm them down.

After the animals break the farmer's classic video game system, they need to make some quick cash to replace it. Seeing an ad to babysit, they dress up as British nannies and show up at the address on the ad. Only when Mrs. Beady answers the door do they realize they're babysitting Snotty Boy, but Snotty Boy wreaks havoc on them and the animals have to get the little terror fed, bathed and into bed before the Beadys get home and earn the money for babysitting.

When news anchor Hilly Burford is crushed covering a giant cheese curd that Otis made, the animals fill in for him on the news. They turn out to be a huge hit and replace Hilly, but Otis doesn't want them to replace him so they try to convince Hilly to get back to his job.