While Tommy and Johnny have another encounter, Janet and Angie re-establish their acquaintance. Meanwhile, Sheila is unhappy when she sees Tommy and Angie together. Maggie wants to get back together with Sean. Mike hooks up with a woman at a bar, making his roommate, Chris, jealous. Franco finds out about Jerry's second job at the pub, and the money in the no-smoking jar goes missing.
An accident leads a U.S. Marshal and a teenage girl (who later is revealed to be his daughter) to a peculiar town populated by scientists and their families where 10-year-old boys are in 11th grade, the local diner doesn't believe in menus, and E=MC² was just the beginning. Just as the Marshal starts to get settled into the swing of things, a local scientist develops a bomb that seems to appear anywhere and eats all the matter around it.
Our heroes ride a jet belonging to Grandpa Max's old Friend, Donovan Grand Smith, who owns an underwater resort. At the entrance, they receive a warm welcome from Donovan himself, though they also meet with his grandson, Edwin, who didn't seem to be excited about their guests. Later, when Edwin, Ben, and Gwen enter the Undersea Manta Ray, a giant submarine, they encounter strange aliens that threatened to destroy the whole resort. While the kids find a way to cooperate with each other to find the source that lures them in, Donovan himself learns a few lessons in how to bond better with his grandson.
Mike first heads off to California to help tear down a dam so trout on the endangered species list can spawn. Mike then goes to Pennsylvania to restore a church's pipe organ, a process that takes a total of eight years to complete. Finally, Mike goes to Puget Sound in Washington to harvest geoduck clams, otherwise known as "gooey ducks".
One of the biggest pots and the biggest bluffs of the season all in one episode as action continues with Daniel Negreanu, Jennifer Harman, Fred Chamanara, Antonio Esfandiari, Mike Matusow, Todd Brunson, Minh Ly, and Sammy Farha.
Mac is surprised when Bloo and the rest of the gang show up at his place for a slumber party.
Winston's had enough of Craiglang and decides he wants to live beside the seaside. Jack and Victor become wedding chauffeurs for the day.
Kyle attempts to figure his emotions and sudden attraction to next door neighbor Amanda, while Lori and Josh are also experiencing love pains of their own.
Brenda and the team find themselves wading through a long list of suspects when a celebrity photographer takes a fatal fall from his hotel room balcony. In the meantime, Brenda starts to feel like Fritz is behaving strangely, making her realize that superstars may not be the only ones who have secrets to keep.
In Day 6, Chef Gordon Ramsay tempts the two teams with the winner celebrating a night out on the town. For the dinner service, the teams create their own personalized menus.
Dave hits the campaign trail as yell-happy presidential candidate Howard Dean and assumes the role of an antagonistic Gary Coleman. He also attempts to elude a crop of persistent racial stereotype pixies.
In Charlottesville, VA, the boys compete in a game of paintball that ends with Dane crying foul play. Later, Dane's dizzy spell fuels speculation that the show will be cancelled, but Gary's 'perfect' set, and the crowd's support, pull him through.
After an argument with Kim, Louie calls his wife a cunt, leading to an abrupt end to what was supposed to be a sex-filled weekend.
The lads take a caravanning holiday in Dorset. The Stig see how fast you can drive an F1 car indoors. The Mazda 6 MPS, Mondeo ST220 and the Vauxhall Vectra VXR are tested. Brian Cox is the Star in a Reasonably Priced Car.
Johnny ends up taking the place of the inside man in a museum robbery to stop the crime and prevent several deaths, but soon finds he may have to help them escape to prevent innocent people from being killed.
Paris and Nichole are challenged by caring for a five year old and a baby.