A returning war veteran, stricken with PTSD, gets trapped with his teenage sister on Boston's Tobin Memorial Bridge when a heavily armed group of ex-military revolutionaries take everyone hostage.

A mom and dad who usually say no decide to say yes to their kids' wildest requests — with a few ground rules — on a whirlwind day of fun and adventure.

Plot details are under wraps; described as a character-driven story set in a small Tennessee town.