Impossible Repairs Season 4: Episode Guide & Ratings

At Monster Jam, custom-built monster trucks roll, flip, and fly through the air. With the metal-bending beating these trucks endure, teams of specialized mechanics race against the clock to repair these engineering marvels intime for the next event.

Mike is in Iceland, where teams harness the power of volcanoes to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes and bringing a dead well back to life.

In Florida, Mike tackles one of the most dangerous jobs on the planet - commercial diving. He helps a specialized team keep waterways safe; fixing construction site leaks, and removing dangerous structures...all while hurricane season is in full swing.

In the Alps of Switzerland, Mike helps an elite team install a new cable (rope) system on an iconic mountain gondola line, helps fix the world's steepest cogwheel railway track and explores mountaintop family farms only accessible by cable cars.

Mike in north eastern Australia, going on and under the water, into labs and onto construction projects working with specialized teams as they tackle the daunting challenge of saving dying coral on the incredible Great Barrier Reef.

Mike joins crews as they build the world's longest railway tunnel in the Alps, fixing gridlock through the infamous Brenner Pass by drilling, blasting and digging their way through the mountains while pushing through a challenging fault zone.

Mike works with repair and construction teams at Dreamworld, Australia's largest theme park, after a cyclone caused $4M in damage. They fix scream machines and finish a $50M expansion featuring the world's first triple switch rollercoaster.