Maddie, David and Ms. Dipesto track a real killer on a train trip designed for murder-mystery buffs.
Diana steps in when con artists take advantage of a boy's (Todd Lookinland) psychic powers to interfere with a peace conference.
The 1850s California gold fields is home to notorious bandit Joaquin Murietta; Matt and Frankie arrive to track him down but he kidnaps Frankie; Matt and Captain Love trail Murietta to the bitter end.
