Hal comes up with a risky new plan to rescue captured teenagers from the aliens, but it might require putting someone at risk. Meanwhile, a sudden tragedy causes Anne to make an enormous discovery that proves instrumental to Hal’s risky plan.

Longworth's investigation of a man beaten to death in a truck stop restroom finds clues leading to a luxury rehab center. In addition to the crime, Carlo is dealing with his daughter's Quinceañera and a former colleague who needs his help. Callie and Jeff are struggling with Ray's absence

Jeremy Clarkson and Richard Hammond find second-hand bargains for the price of Britain's cheapest brand new car, the Nissan Pixo. James May is in Nevada to test the toughness of the Range Rover Evoque and chauffeuring a megastar through Las Vegas. Also, the McLaren MP4-12C is compared with its rival, the Ferrari 458.