Monarch closes in on Cate, Kentaro, and May as they try to track down a key individual. Keiko, Lee, and Billy stumble on a major find.

Shaw leads the team on a dangerous mission to Alaska in search of Hiroshi. Keiko, Lee, and Billy present their findings to General Puckett.

Shaw finds an unlikely ally within Monarch as the team has a harrowing run-in. Keiko and Lee grow closer while at a military ball.

The team goes back to where things all began to confront Shaw. On the brink of collapse, Monarch takes drastic measures.

Shaw and May search for Cate and make a startling discovery. Kentaro struggles with his loss.