When a woman mysteriously gets sick and then quickly dies the crew is quarantined at the base.

Laura leaves David at the altar to take part in a rescue.

Tension mounts in Port Hallet as the local commercial fishermen are shut out by moratorium that excludes First Nations fishing. Carly, a fisherman's daughter, sympathizes with the locals but finds herself forced to turn against them when they attempt to sink a native fishing boat. Meanwhile, a fresh crop of summer cadets from Coast Guard College arrive at the base ready to compete for positions on the MLB.

The Coasties race to rescue an adult film crew. David's ex-wife arrives to investigate a foot washed up on the beach.

Mysterious things happen at the home of a reclusive woman. Meanwhile hikers keep hearing explosions.

When the crew of fishing vessel die, the coasties must figure out what went wrong.

When Andrew and his brother disappear, the Coasties must figure out where he went.

David's wife threatens Laura. The Coastie cup is awarded to the best cadet.

A community-wide search for a missing epileptic boy expands when Carly doesn't return from a kayaking trip.

Miro receives his punishment for regulation violations. Laura chooses whether or not to apply for a boat of her own.

When Tina goes missing Laura must work with Miro and Tina's mother to find her.

Andrew deals with his failure to save a family from drowning.

When a retired lighthouse keeper with Alzheimer's goes missing, it stirs up Carly's guilt for abandoning her father. Ursula finds Tina in a compromising position in Miro's hotel room and gives Miro the boot, landing him in Laura's guest house. Carly finds Wendell camping out, about to revert back to drugs.

A sailboat gets caught on high seas in a storm.

The crew works to save a family at the bottom of a cliff.

Andrew attempts to free a man trapped in an overturned lifeboat; Miro meets an attractive nudist.

A junkie is tossed overboard; Miro's truck is repossessed; Amy kicks Andrew out.

Andrew must face his demons when helping a woman prove her sister didn't die in an accident.

Miro violates regulations when he takes the MLB on a chase. Meanwhile, Andrew tells Amy about kissing Carly.

The crew finds itself in a race against time when they respond to a plane crash on a remote island.

Carly discloses her troubled childhood to Wendell; Andrew's nightmares escalate and he quits counseling; Miro picks up a teenage flag girl to bring to Laura's party.

A rescue becomes personal for Laura when she is called upon to save the life of Jen, an undercover cop, who is Tina's biological mother. With tequila as incentive, Andrew and Carly study for the upcoming base inspection and accidentally share a passionate kiss. While attempting to repair Laura's backyard shed, Miro enlists Tina's help and ends up being a positive influence.