Flying on one of the biggest helicopters on Earth, on a quest to pull valuable timber from the forest. Unfortunately for the crew huge repairs threaten to bring this mission to a halt.

Go on an incredible journey across Lithuania on big trains packed to the brim. On the coast a fleet of gaints ships eagerly wait to collect their bounty and take it across the ocean.

Ride the rails of Europe on a mission to haul hefty cargo north from Switzerland to the Netherlands. A journey which spans four countries with critical repairs necessary at every turn.

Going behind the scenes at the Panama Canal Railway. Big track repairs, massive machines, and unrelenting deadlines make this one of the hardest and most important maintenance jobs in the world.

Offshore fish farming is big business, with big profits, big machines, and very big risks. In this episode, host Mike Davidson goes on perhaps his most physically demanding mission yet, joining the crew of Open Blue as they transport a school of Cobia whitefish worth $300,000 in future sales. For three days, he'll battle ocean waves, dive in shark-infested waters, and assist in excruciating repairs to ship engines and feeding dosers. And just when it looks like smooth sailing ahead, Mother Nature steps in to show who's really in charge.