Dana Delany, Luke Perry

So much for a nice, quiet date for Megan (Dana Delany) and Charlie (guest star Luke Perry) on Tuesday's episode of Body of Proof.

What starts as a romantic evening for the pair is derailed when a plane crashes into Philadelphia's main power grid and causes a blackout.

Get the scoop on Body of Proof and 38 other must-watch season finales

With limited medical crews and other help unable to get to the area due to the blackout, it's up to Megan and her team — including her ex, Tommy (Mark Valley) — to treat the survivors and figure out what caused the crash. And they quickly learn it wasn't just an accident.

Check out an exclusive sneak peek of the episode, called "Dark City," below:



Body of Proof airs Tuesdays at 10/9c on ABC.