Air date: 2016-09-07

Runtime: 44 min

Former aerospace engineer Justin tries to keep the Glasgow Tower turning, and Tomo helps engineers in Osaka keep their airport from sinking into the sea.

Air date: 2016-09-14

Runtime: 44 min

Justin climbs on top of a stadium roof that is held up by air and in danger of collapse. Plus, Jimena Gascon discovers why Mexico City's Metro project has been derailed.

Air date: 2016-09-21

Runtime: 44 min

Justin uncovers the truth behind a landslide that wiped out a ski-jump resort in Turkey, before jetting off to Gibraltar to see an airport runway built across a road.

Air date: 2016-09-28

Runtime: 44 min

Would you ever believe a skyscraper can melt a car? Justin heads to London's Walkie Talkie building to unearth the science behind this building blunder.

Air date: 2016-10-05

Runtime: 44 min

Justin braves the turbulent North Sea as he goes inside an offshore wind turbine to see how engineers are fixing a fault that could cause these structures to fall into the sea.

Air date: 2016-10-19

Runtime: 44 min

Justin's in for a bumpy ride as he investigates gigantic potholes in Louisiana. Later, he heads to London to get a sneak preview of London's vast Crossrail project.