Emergency responders must try to balance saving those who are at their most vulnerable with solving the problems in their own lives.

A roller coaster malfunctions at an amusement park. Athena and Hen respond to an unusual home invasion. A couple's dispute leads to a dramatic rescue.

Bobby and his team respond to an emergency at a children's birthday party. The crew jumps into action after one of their own is involved in a devastating accident. Athena tries to cope with a tragedy that hits way too close to home.

In the aftermath of a deadly plane crash, Bobby and team race to help the survivors. Athena deals with panic and chaos at the airport. Bobby confronts his past demons.

The crew races to an emergency when disaster strikes at an Indian wedding. Abby enlists the help of Buck to try and find her mother. Bobby has a difficult time confronting his past. Hen struggles to make the right decision.

On Valentine's Day, a surprise marriage proposal goes awry with dangerous consequences. Athena attempts to help a desperate woman and unintentionally joins the Lonely Hearts Club. Bobby and Chimney pull holiday duty and learn about the "Casanova Fracture" and Abby and Buck go on their first official date.

Athena investigates a potential home invasion and deals with a rabid criminal. Abby helps investigate the murder of a caller. Hen's past may become her future.

An unremorseful widow, an unsuspecting thief, and an arrogant fitness club owner receive a taste of karma. Bobby gets a surprising phone call from his doctor after donating at Chimney's blood drive.

The first responders race to help a homeless man crushed in a garbage truck, a mother and son in a crashed elevator and extreme hoarders entombed in their house. Athena jumps into the dating pool. Buck and Abby's relationship is tested by her ailing mother.

The first responders take calls to help an unusual domestic disturbance, a "death" at a psychic's and a horrific motorcycle crash. Bobby dips his toe into the dating pool. Abby takes a walk down memory lane. Buck is confronted by his past actions. Athena tries to start her new life.