S1·E18 Quicksilver

When Rollie discovers a sinister international arms smuggler named Victor Loubar has stolen his identity, he teams up with FBI agent Elena Serrano to hunt for the impostor. Together they enter the dark, sinister world of Loubar, where nothing is what it seems, and no one can be trusted, racing to stop the mysterious criminal mastermind from stealing a top secret experimental ""smart grenade"" from a military contractor.