Episode: 4x01 | Airdate: Sep 8, 2015 (45 min)
With winters first blow, new recruit John must save a snowplow stuck in an icy river; while Jamie pushes further into new territory, changes rock the company, forcing Colin to take on a new role; the community says farewell to a Heavy Rescue legend.
Episode: 4x02 | Airdate: Sep 15, 2015 (45 min)
Jamie's new B.C. crew struggles with a mangled trailer on a blind corner; when Colin slips up on a big recovery in Alberta, Jamie's brother must take over the job, even though he's a rookie on the rotator; Brandon steps up to a new role.
Episode: 4x03 | Airdate: Sep 22, 2015 (45 min)
When a lumber truck and diesel tanker collide, the flaming wreckage is the biggest recovery of Colin's career; as snowstorms pummel the Coquihalla, Al Quiring heads up the hill; in freezing rain, John faces off against a mangled tractor.
Episode: 4x04 | Airdate: Sep 29, 2015 (45 min)
A semi plows off a bridge, leaving a trailer and three RVs dangling over a raging river; John must get holiday traffic moving and prove himself on a multi-part recovery unlike anything they've faced.
Episode: 4x05 | Airdate: Oct 6, 2015 (45 min)
Al Quiring races to recover a trailer and open the TransCanada before the morning rush; Jamie runs a race of his own when a semi carrying a load of pharmaceuticals plunges down a bank; in Alberta, the burdens of running the shop solo take a toll on Colin.
Episode: 4x06 | Airdate: Oct 13, 2015 (45 min)
A downpour of freezing rain covers Hope and the Coq in a thick layer of ice, cutting off communication and crippling Jamie's operations; Ken Monkhouse heads to a job up a remote, ice-covered hill and re-lives the worst day of his life.
Episode: 4x07 | Airdate: Oct 20, 2015 (45 min)
Al and Gord from Quiring Towing rescue a loaded semi that's teetering on the edge of a 300-foot drop; when a new client needs Colin's help, he faces a white-knuckle drive on a remote Alberta back road; Jamie tests out a new driver.
Episode: 4x08 | Airdate: Oct 27, 2015 (45 min)
When recovery crews team up for a massive wreck, a close call leads Brandon to reconsider his future in the business; attempts to straighten out a jackknifed truck get twisted.
Episode: 4x09 | Airdate: Nov 3, 2015 (45 min)
The Davis and Quiring families team up for a rare joint recovery; a big rig is left teetering in a seemingly impossible position.
Episode: 4x10 | Airdate: Nov 10, 2015 (45 min)
A simple job turns into an urgent puzzle when a flipped semi pulls Jamie back out on the road; Randy Jacknife faces one of the biggest and heaviest challenges of his career against an overturned truck trapped under its load of steel.
Episode: 4x11 | Airdate: Nov 17, 2015 (45 min)
A wrecker is called to a river bank to help with an underwater mystery that may be linked to a deadly crime. Jamie's crew battles a whiteout.
Episode: 4x12 | Airdate: Nov 24, 2015 (45 min)
As Jamie reaches a difficult crossroads, he looks back over four seasons, revisiting his most challenging wrecks and recoveries; familiar faces from past and present explain what drives them to this dangerous world; a look behind the cameras.
Episode: 4x13 | Airdate: Dec 1, 2015 (45 min)
Jamie takes control of the rotator for the first time in months; Jamie turns to his competition for advice about a major decision that will determine the future of Heavy Rescue.
