A full moon leads to some very weird calls for the crew. Athena looks into a potential home invasion, Abby investigates a caller's murder, and Bobby and Buck face a yoga studio full of pregnant women.
Responders help a man stuck under a garbage truck and a mother and son in a crashed elevator; Abby's situation with her mother puts a strain on her relationship.
The 118 races to the rescue when the call centre goes up in flames; Bobby risks his life to save a trapped May and Claudette; Buck and Eddie must help an injured electrician; Chimney and his brother team up as firefighters for the first time.
The call centre faces a system-wide power outage and must respond to emergencies the old fashioned way; the first responders deal with explosions in multiple homes, and a difficult child birth.
Bobby is nervous about meeting Athena's parents; Maddie tries to end her marriage for good; Doug tries to insinuate deeper into Chimney's life.