Building Alaska - Season 4 (2015)

A bear attack and wild weather shuts down the builds and an underwater fix saves a dock.

The teams deal with an emotional struggle after a bear attack, a cement mixer meltdown and a special sky delivery.

The crews race to stay ahead of the chopper drops, a builder battle brews and a building is on shaky ground.

The danger of working alone in extreme Alaska is no joke and using old-school tricks still works.

The crews encounter nothing but wall-to-wall problems at each of their builds.

No machines, no problem. It's down to all-muscle power on the remote builds.

While two builders battle gale-force winds and rain, it's a whale of a good time at the third site.

A battle at the builds as sparks fly in camp and some unwelcome bears won't leave well enough alone.

It's crunch time as builders race against Mother Nature to finish their cabins.