Things are going from bad to worse on 9-1-1. It was disastrous enough when a tsunami hit the Santa Monica Pier, but now the fallout from that cataclysm is adding new complications that are making rescue efforts even more dangerous. Complications like water that's about to catch fire.

In this exclusive sneak peek of Monday's episode, "The Searchers," the second part of 9-1-1's two-part tsunami saga, Hen (Aisha Hinds) realizes that the water she and other first responders and tsunami survivors are standing in is getting flooded with gasoline. A tanker truck that got hit in the wave is leaking, and one spark could start a fire, so she tells Bobby (Peter Krause) that evacuation efforts need to be sped up right now.

"The [previous] episode has a lot of action and high-octane moments, and [this] episode still has some of those, and there are still big set pieces. But it's also an emotional journey," 9-1-1 star Oliver Stark previously told TV Guide about tonight's episode. "I've heard it's like the second act of The Impossible movie. The tsunami has hit. Now, it's the aftermath. Now there is all kinds of devastation left. Now they're trying to reconnect. It's gonna rip people's hearts out a little bit."

9-1-1 airs Mondays at 8/7c on Fox.

Aisha Hinds, <em>9-1-1</em>Aisha Hinds, 9-1-1