PART 2: DEATH VALLEY BEGINS. A group of college students on a camping trip are swept up in a horrifying & deadly conspiracy decades in the making.

A mysterious stranger and a scavenger hunt helps Archer and the gang get a jump on their enemies.

A video of Casey from the roof rescue goes viral. Mouch sets up a Little Free Library at Firehouse 51. Herrmann breaks protocol.

Jimmy reads his favorite tweets with the hashtag #MakeASongAboutFall, plays a few rounds of One Word Songs with Maluma, catches up with Michael Gandolfini and enjoys a performance from GIVĒON.