Relic Hunter (1999)

S1E2 Smoking Gun

In 1930s Chicago, Sydney is convinced by the grandson of a man wrongfully accused of murder seven decades earlier to search for Al Capone's diamond-studded gun, believing it could exonerate his grandfather. As Sydney digs deeper in a hotel once visited by Capone, he discovers much more than he anticipated. Meanwhile, Nigel becomes intrigued by Lori. When they find themselves in Capone's rumored hidden bunker, they must navigate a series of traps designed to protect its secrets in order to make it out safely.