Charlie Bodin

When the Hollywood Reservoir dam breaks, Bobby and the 118 race into action to save passengers on a city bus that has crashed into a building several stories in the air. Maddie must first locate, and then rescue, a trapped cyclist, and Athena helps an agoraphobic woman evacuate her home. Meanwhile, the team adjusts to life as first responders during the pandemic. Bobby worries if Athena is ready for field duty since recovering from her physical and psychological injuries; Chimney takes extreme precautions around a pregnant Maddie; and May begins a surprising new job.

Meredith dodges Maggie's questions about DC; Bailey and Ben worry about Ben's brother; Dr. Herman starts to change her mind about Arizona; Richard feels manipulated.

While Jack and Cole team up in the field to shield New York from the calamitous threat, a hostage situation has CTU completely stressed out. Meanwhile, unrelenting parole officer Prady presses on in his investigation, and unexpected developments send the Hassan family into a major tailspin.

Conrad treats one of Gigi's classmates whose stomachache turns into something much more serious; Devon takes several interns to a senior living facility; Leela uncovers some unsettling news.