Four couples meet for Sunday brunch only to discover they are stuck in a house together as the world may be about to end.

In 1971, Cathy Rush becomes the head basketball coach at a tiny, all-girls Catholic college. Though her team has no gym and no uniforms — and the school itself is in danger of being sold — Rush looks to steer her girls to their first national championship.

The band's next concert stop is in New Orleans where Nat reunites with a childhood friend, sending Rosalina into a jealous frenzy! Meanwhile, Alex initiates an extreme environmental movement to help save polar bears at the North Pole, but devious reporters frame him to appear as a conceited rock star who hates Santa!

The Naked Brothers Band and another band, the L.A. Surfers, find themselves competing in a "Battle of the Bands" charity event benefiting Little Kids Rock. Rosalina starts to fall for the L.A. Surfers' lead singer, Bobby Love. It annoys Nat that Rosalina hangs out with the opponent's lead singer. It turns out that Bobby is just dating Rosalina to get to Nat and is lying about everything, i.e, his British accent, not writing his own songs, etc. Nat and Bobby fight and declare at a press conference that the charity event is now a competition and the losing band's proceeds from their next CD goes to the charity.

A devoted Bichon pup helps his teenage owner and her dog-dancing uncle unleash their potential.

Nathan and Aubrey committed murder on the day of their engagement party. Now, they have to cover their tracks and deflect questions on Elle's disappearance, or the authorities will come knocking.