NorBAC must unravel a genetic mystery when fish bred in an East Coast fish farm start exhibiting unexpected and dangerous mutations. Furthermore, a number of kids in an East Coast village are becoming ill; could deadly radiation be leaking into the Ocean?

The team continues to work on a promising anti-parasitic drug after a spike in Arkansas' suicide rates is traced to worms brought into the state on the winds of hurricane Katrina.

Caroline is in Washington being briefed about a new looming crisis - an entire National Guard unit has fallen unconscious and can't be woken up. The illness resembles encephalitis lethargica, but the patients aren't responding to usual treatments. The U.S. military suspects the illness is the work of a radical Muslim group.

Meanwhile, Jill is released from quarantine and quickly sent home to rest.

Cuddles the fabric softener bear gets the wrong kind of hug. Corporate disputes get solved hand-to-hand in Office Fighter. Monkeys explore outer space on a budget. George W. Bush discovers he has Jedi powers. And we're back with more of those stupendous bloopers, including auditions tapes from MTV's Jackass!

Vicki Butler-Henderson discovers how much punishment a Mercedes can take by crashing it, flooding and driving over it with a monster truck. Tom Ford stops at a Japanese service station hosting an unofficial all-night car party. Plus, a lawyer who specialises in getting celebrities off speeding charges.

The team are on the case of the ice cream bandit, an armed robber who's targets were the ice cream vans of two feuding ice cream manufacturers in the mid 1990s. The battle between the two families erupts into violence, so UCOS decide to track down the bandit and stop the conflict once and for all.