Page "Pay It Forward" Paragraph 2

Trevor does a favor for three people, asking each of them to " pay the favor forward " by doing favors for three other people, and so on, along a branching tree of good deeds.

His first good deed is to let a homeless man named Jerry ( James Caviezel ) live in his garage, and Jerry pays the favor forward by doing car repairs for Trevor's mother.

Trevor's efforts appear to fail when Jerry relapses into drug addiction, but Jerry will pay his debt forward later in the film by talking to a suicidal woman, who is about to jump off the bridge.