An urban spelunking group in San Francisco discovers a secret bunker belonging to the long-vanished 1930s stage magician Blackhall the Incredible at the same time as young, out-of-work magician Ivan receives a mysterious package that points him toward a possible conspiracy involving Blackhall's death in 1934. Both groups dive into the mystery, not yet realizing that it's about the change their lives forever.
Ivan uses his hypnotism skills on Landell in hopes of finally helping Harumi locate Damon. However, what they learn may not be what they want to hear, especially when it leads them straight into the hideout of the Nonchalants, Backbone's arch-rival urBex team.