Lisa struggles to make the transition from Alaska; Alex slams into two vehicles on crowded roads.

Rick and Lisa take on The Ledge; Dave Redmon has the most terrifying ride of his career.

Dave faces the Freefall Freeway; Lisa heads back up to The Ledge; Rick reaches his breaking point.

Lisa is in danger with an oversized nine-ton load on a crumbling mountain; Rick's news from home.

Rick gets good news from home; Rick and Lisa transport fragile statues; Dave tackles the Ledge.

The drivers tackle Rohtang Pass; Rick delivers a Buddha statue; Lisa brings supplies into Keylong.

Rick leads the charge back over Rohtang Pass; Dave and Rick deal with an aggressive Indian driver.

Tensions between Lisa her spotter rise; Dave deals with an overweight load; Rick battles illness.

Rick's spotter Boyo leaves Rick for a better job; Lisa and Dave are slowed by people on the pass.

Rick and Lisa deliver barrels of aviation fuel with no spotters; Dave gets in another accident.