In the Catalina fire, Eriksson found a woman who said she lost her daughter in the fire and ask him to find her. He, Alfonso and Dunnigan must do all their can to find her meanwhile the fire have become bigger.
Reeling from the loss of their leader, the SAF3 team suffers another major blow when the very existence of the program is questioned by a board of review. Until the outcome is divulged, it is business as usual and the SAF3 team pulls together to make a dramatic car rescue.
The investigation into the SAF3 team's actions in the deadly Catalina fire carries on, while Alfonso struggles with his horrific physical injuries and haunting emotional scars. The remainder of the team is put into jeopardy while undertaking a daring underwater rescue.
Confident they will be reinstated after a suspension sentence they feel is unfair, the SAF3 team carries on with their training activities. A drill lead by Graciela Vega, a trauma nurse in the Los Angeles forest, turns into a real rescue when the SAF3 team comes across a welder fighting for his life.
Crushed by the news that SAF3 has been terminated, the team rallies together to overturn the decision. Anxiously awaiting the outcome of their appeal, they focus their energy on supporting Alfonso as he faces a new life after being severely burned.
After a string of testing events, SAF3 is rewarded with an unexpected posthumous gift from their leader. Graciela must face her greatest fear in a dangerous cliff rescue, while Alfonso struggles to claim his position back on the team.
Eaach SAF3 members' area of expertise and resilience are put to the test when they are called to a hazardous underground rescue involving the deadly effects of a poisonous gas. Meanwhile, Charley gets herself noticed for her consistent rescue work along Malibu beach.
The new leader of SAF3 must face his personal issues in order to maintain his position in the organization. Meanwhile, the team intensifies their training schedule, focusing their energy on their respective weak points and helping one another overcoming their own fears.
Two members of the team experience first-hand the intransigent code of conduct by which SAF3 operates. Meanwhile, closure on a horrific experience that left him scarred for life, brings Alfonso a new sense of purpose.
The SAF3 team are in a race against time to rescue refugees in a shipping container tossed overboard by human traffickers. The strong bond among the group is further strengthened beyond their work relationship by several acts of selflessness.
The SAF3 helicopter crashes leaving three of the team seriously injured and adrift in the ocean. The rest of the team rallies to provide as much support as they can in the hopes of finding their friends alive.
The 4th of July is the busiest day of the year for the SAF3 team, their skills and courage are pushed to the limit when they respond to an offshore explosion.