After three poor orphans are sent to live with gambler Russell Donovan (Bill Bixby), they discover they have actually inherited a large fortune from their dead father. Soon a series of greedy undesirables shows up. They try to get their hands on the money, so, in order to keep things uncomplicated, the kids decide to give their inheritance to a lovable outlaw duo, Theodore (Don Knotts) and Amos (Tim Conway). But there is only one problem — the gold is locked away in a bank vault.