Krista's homecoming is cut short when Arctic Air launches a daring search and rescue operation to save 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.
Bruce Ward is blamed for Bobby's foster sister's alcohol-related death in the dry community.
The team attempts a risky high-altitude rescue; Bobby is attacked.
Krista's SAR team gets trapped during a disaster; Tag clings to life on the mountain.