Roller Coaster 911Amusement park technicians spot a section of broken roller coaster track.
High-Wire Hell
D2
High-Wire HellFearless crews keep a hi-tech tramway system safely operating.
Mission Las Vegas
D3
Mission Las VegasTechnicians face extreme conditions to keep the lights bright in Las Vegas.
Storm Surge Emergency
D4
Storm Surge EmergencyA team of professionals maintain storm surge barriers in the Netherlands.
Firefighting Water Bombers
D5
Firefighting Water BombersMaintenance crews keep firefighting, water-bombing aircraft flying.
Tower of Terror
D6
Tower of TerrorFearless technicians battle staggering heights and fierce winds to upgrade a communications tower that keeps millions connected; special access to this dangerous job site reveals what it takes to get the job done.
Ice Bridge Nightmare
D7
Ice Bridge NightmareA determined team of expert technicians battle nature's destructive force to keep one of the world's longest road bridges open in deadly conditions.
Hell on Water
D8
Hell on WaterA committed crew of mariners race against the clock as they dredge North America's busiest shipping canal to allow safe passage for huge oil tankers, and specialists repair years of heavy damage and corrosion to get a massive ferry safely operating.
