Adventure starring Robin Williams. An overworked Bob Munro (Williams), his wife Jaime (Cheryl Hines), their 15-year-old daughter Cassie (Joanna Levesque) and 12-year-old son Carl (Josh Hutcherson) are in desperate need of some quality time together. After promising to take them on a family vacation in Hawaii, Bob abruptly changes plans without telling them. Instead of a week in a tropical paradise, they're going on a road trip to Colorado in a recreational vehicle. Unfortunately, everything that can go wrong, does and every attempt Bob makes to get them into the spirit of the vacation threatens to tear them further apart. At an RV camp, the Munro family is befriended by the Gornicke family - an irritatingly endearing happy-go-lucky clan of full-time RVers. The more they try to elude the Gornickes, the more their paths seem destined to cross. But adversity has a way of uniting even the most dysfunctional family members and each setback the Munros experience inadvertently helps them become a true family again.