The murder of a Police Commander and his wife puts Walker, Connor and the team under pressure to get a quick result. Jewelery has been stolen from the house, which would indicate a burglary gone wrong, but several relatives profit from their deaths and so they focus the investigation on the family. Connor is suspicious of the identical twin sons in particular and suspects that they may have worked together in order to get away with patricide.
Matt takes a stroll down memory lane and recalls how he met Harriet.
Harry loses his cool with 3 swimmers that he's forced to rescue just seconds after warning them not to swim in a dangerous area. However, calling them "imbeciles" and "idiots" puts him in hot water.
Karen and Lacey move their friendship up a notch by no longer asking when they borrow things from each other; Oscar, Emma and Wanda decide that Brent needs to expand his horizons, movie-wise, so they prepare to show him his first horror flick; Hank decides that he needs to have the contents of his truck with him at all times, and comes up with a novel solution.
Gillian moves into the bunkhouse with Matt; Kris feels she and Wildfire are slowly losing their importance at Raintree.
The kids decide to create a circus in LazyTown. Robbie quickly formulates a scheme to blast Sportacus out of a cannon and out of LazyTown.
High Stakes Poker sees a wave of new faces join the game as Sammy Farha, Brian Townsend, Todd Brunson, Barry Greenstein, Jennifer Harman, Erick Lindgren, and Eli Elezra kick off the $300/$600 No-Limit Hold'em action.
Day breaks in a slice of red over the Southern Atlantic Ocean Península Valdés, Argentina and a colony of southern elephant seals and its new pups.
Ted can't seem to catch a flight to interview for his dream job and he and Robin contemplate why. The story unfolds backwards as they think about it they remember when Robin and Lily went hunting for a wedding dress and when Barney got stuck on the subway.
Jack looks for a Russian national as his father plots with shadowy patriots. Meanwhile, the President and the Constitution may be in danger.
The President meets with a known terrorist, while Jack searches for Morris, Fayed seeks a trigger, and Tom Lennox makes a choice.
The substitute teacher expects more from Chris which is making things very hard for him. Tanya figures out if she accuses Drew of hitting her things go her way.
Matt enters the private security business and receives an objectionable client. Suresh finds another person on the list. As her home-life worsens, Claire strives to learn more about her birth parents. Hiro and Ando get sidetracked in Vegas again while searching for the sword. Nathan is forced to deal with a secret from his past. Still indebted to Mr. Linderman, Jessica resorts to unsavory methods that could spell doom for a fellow hero.
After Peters dad, Francis, dies, Thelma tells him that his real father actually lives in Ireland. So Peter and Brian decide to head there in search of his father, who ends up being the town drunk. They decide to play a drinking game to prove his paternity. Meanwhile, Stewie acts out and Lois spanks him. Realizing that he likes being spanked, Stewie does whatever he can to get into trouble.
A series of ritualistic murders starts to look a lot like werewolves so Harry, of course, gets dragged in. Thing is, it looks like the lycanthropes aren't the killers... they're the victims.
Lisa pretends to be Native American for multicultural day at school. Meanwhile, Bart finds love with an older woman.
Ian proposes to Susan. The Scavo pizzeria prepares for its grand opening. Mike visits a hypnotherapist in hopes of remembering Monique. Gabrielle's romantically interested in a lawyer, but he's working for Zach who wants her for himself. Bree is hospitalized after a fall, after being tricked to climb on a ladder to retrieve Monique's teeth.
When Bobby's snakes gets into the toilet Hank decides to call Animal Control. But instead of taking care of the problem they make the city believe that the problem is worse than it is causing panic. Now it is up to Dale to save the city.