When the grandson of a gun wielding woman is murdered by neo-nazi surf punks in the post-apocalyptic future, this grandma hunts them down for some bloodthirsty revenge.

Paul is a new kid in town with a robot named “BB”. He befriends Samantha and the three of them have a lot of good times together. That is, until Samantha’s abusive father throws her down some stairs and kills her. In an effort to save her life, Paul implants BB’s computer brain into Samantha’s human brain.