It's a cruel, cruel summer on "9-1-1."

The Fox drama has released a sneak peek at Season 3, which reveals disaster once again strikes Los Angeles — with the Station 118 crew in the thick of things.

Last season opened with a devastating earthquake; this season will bring an enormous tidal wave to the beach. As the trailer reveals, Buck (Oliver Stark) is among the people enjoying carnival games and rides on the Santa Monica Pier, until he spots the tsunami and shouts for everyone to run.

“An emergency is the absence of choice,” notes Athena (Angela Bassett). In their line of work, all she and new husband Bobby (Peter Krause) can do is stay strong as they deal with the aftermath.

"9-1-1" Season 3 premieres Monday, September 23 at 8 p.m.