Two teens on a police ride-along uncover a web of corruption, drugs and murder beneath the surface of their quiet Texas town – and must recover the evidence gathered by one teen's father, a cop murdered by his brother officers, if they're to survive the night…

Needs more clarity here because feels like there could be a good story here. It's the evidence gathered by one teen's father that confuses me. Is it one of the teens who is on the ride along or another? Who got murdered? Its all a little confusing. But stick with the theme of ride along as it has potential.

When two teens on a police ride-along overhear a murder plot, they must find the evidence of police corruption collected by one teen's father if they're to save an innocent man - and survive the night...

Damn HTML...

"when (incident occurs), (hero/es) must (act) to (achieve goal)" is what I meant.