Bobby and Krista attempt to rescue a group of stranded tourists from a raging forest fire, but they need help from the rest of the Arctic Air crew if they're going to make it out alive.

Bobby's sister Deanna is arrested for eco-terrorist bombings, but as Bobby works to clear her name, he learns that there's one more bomb and it's been planted on an Arctic Air plane -- with Krista aboard.

Bobby and Caitlin fly into northern hunting grounds to see Nelson, but a long-awaited brother-sister reunion turns to horror when they learn that Nelson was shot by the very hunters he was hired to guide.

Bobby, Krista and Blake are trapped in an abandoned Dew Line station -- only to find out they're not alone.

Bobby backs Jim McAllister in a tough-guy boxing tournament as part of a last-ditch bid to save his diamond claim; and Arctic Air falls into crisis when Blake's friend joins the crew.

A desperate biologist holds Krista and Bobby at gunpoint in the Arctic Air offices, along with a polar bear.

A dying trapper gives Dev and Cece the location of a valuable gold claim, setting off a mini gold rush that pits Arctic Air against Bruce Ward and the Comstock Brothers.

Petra thinks her ex husband has abducted Connor and enlists Bobby's help to get him back, leaving Krista on the hook to plan a 35th anniversary party for Arctic Air.

Bobby must keep troubled rock star Delilah Fury and her comeback tour from falling apart.

Bobby and Mel's DC-3 is shot up; Krista and Loreen arrange a burial.

Krista's mother pays a visit to Yellowknife and throws Krista's life into turmoil and Bobby gets his first real chance to play "family" with Connor and Petra.

While a winter storm hammers Yellowknife, a couples' weekend in Calgary goes sideways after the arrival of Blake's sister and Krista's discovery of Bobby and Petra's kiss.

Caitlin is taken, but her kidnappers don't want money - they want Nelson. A multi-screen finale event that will unfold on your TV, desktop and mobile device.

Arctic Air launches a search and rescue operation for Dev and Astrid.

Bobby fights against time and politics to evacuate a community before an upstream dam bursts.

Krista and Tag’s relationship is tested when an emergency landing leaves them stranded.

A high-stakes plane race raises ghosts from Mel’s past, forcing Krista and Tag to confront a crisis in their relationship.

Bobby fights to save Petra’s life savings when Bruce Ward’s involvement in a business deal causes violence and destruction.

Krista faces a grisly choice when her team attempts a life and death rescue.

Bobby and Loreen race to save Caitlin when her first solo flight goes dangerously wrong.

A prisoner transport becomes a life and death struggle for Blake and Lindsay, as Krista and Tag reach an impasse in their relationship.

Bobby and Connor’s weekend on the land becomes a fight for survival, while a high altitude flight puts Mel and Krista in peril.

Bobby blames Bruce Ward for his foster sister’s death in a dry community, as Blake and Lindsay pursue a murder suspect.

Krista’s SAR crew is pushed to the limit during a high-altitude rescue, while Bobby is the target of an attack in YK.

When disaster strikes, Krista’s SAR team is trapped, and Tag clings to life on the mountain; Bobby and Mel race to save them.