High-schooler Grover Beindorf and his younger sister Stacy decide that their parents, Janet and Ned, are acting childishly when they decide to divorce after 18 years of marriage, so they lock them up in the basement until they'll sort out their problems.

McKenna, the spirit of Tanglewood Forest, can transform into a bear, a wolf or an eagle. When a gang of evil lumberjacks led by Travis Thorne arrive in Tanglewood to chop the forest down, McKenna cannot let this happen. With his new friends, the Lords of Tanglewood, a band of children who love to play in the forest, he battles Thorne and his gang.

By accident, the content of a computer encyclopedia is transferred into the brain of Dexter Riley, a less than average college boy. Because of his newly acquired knowledge he competes in a quiz show between various universities, where he sweeps all the points. A wiz kid from another university finds out about his cheated wisdom and does everything to discredit Dexter.