On tonight's new episode of Rookie Blue Season 4, Andy and Marlo will make an arrest for drugs, which triggers an all-out crisis for both these officers and their colleagues.

Involving what, exactly? Let's just say Hazmat suits are donned.

But while that madness is ensuing around him, Dov will calmly take a step he should have taken a long time ago: he asks Chloe on a date.

Check out the official ABC trailer now for "Poison Pill" and then watch the following sneak peek to see Chloe's reaction. Dov, you are a lucky, lucky man...

NOTE: Rookie Blue has also been renewed for Season 5!

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.