One evening, a man claiming to be Carol's long-lost first husband, Roy Martin shows up at the suburban Brady residence. He is actually a con man named Trevor Thomas and is there to steal their familiar horse statue that is actually a $20 million ancient artifact. They (portrayed as naïve) believe his story about suffering from amnesia and having plastic surgery after being injured. Besides the main storyline, the children have their own subplots in the film. Greg and Marcia both want to move out of their shared rooms and when neither wants to back down, they have to share the attic together.