Terry McGinnis, a young guy who always tries to help people in trouble, discovers the secret identity of an aged Bruce Wayne and convinces him to let him, Terry, be the new Batman.

When their mom remarries, Molly and her brother, Michael, try to make friends with their new stepsister, Heather. But Heather only wants to make trouble for them. She lies and tattles and misbehaves, and somehow they always get the blame. They know she's trying to drive a wedge between her father and their mother so she can have her father all to herself--and it seems to be working. Then, Heather starts playing in the graveyard behind their new house....