Luke, Steve, and Kate join Matt and Lucy on their camping trip into the national park. Kate's arachnophobia surfaces once in the great outdoors and threatens to put a damper on the entire weekend. Terence makes Harry work over the weekend when he manages to introduce a virus into the clinic's computer which deletes all the patient records. Shirley mixes up a pair of DUI blood tests. Lucy suffers serious injuries after falling down a cliff. Luke and Steve hike out of the park to get help for Lucy. Cookie, Esme, and Bob play rousing a game of "Merchant Banker" when their weekend plans fall through.