TV Guide for Now Friday 9 in Discovery Channel

Josh helps discover and explore a labyrinth beneath Cuzco, Peru. He joins a team as they push into the tunnels and find priceless ancient treasures.

Searching For World War II's Lost Hero. Armed with a new eyewitness account, Josh dives into the Pacific to find a lost P-47 Thunderbolt piloted by an American hero in a WWII raid.

Sarah holds her ground as Reed drives the Dominator inside a tornado. Gorilla hail bombards Freddy, and Brandon intercepts a tornado at a gas station.

For the first time, Captain Sig faces a man overboard. The tide turns for Johnathan when thousands of porpoises guide the Time Bandit to new grounds.

Spanning Europe and Africa, Josh's chase for Alexander's fortune ramps up. Clues mount in Egypt, but the conqueror's remains may lie in Venice, Italy.

Searching For World War II's Lost Hero. Armed with a new eyewitness account, Josh dives into the Pacific to find a lost P-47 Thunderbolt piloted by an American hero in a WWII raid.

A stalled dream in California's fire country pushes the Raneys to their limit, as they urgently need defensible space - but Marty must leave early.