Tera wants to enjoy one last party with her cheerleading squad without coming out of the closet. Katie wants to start a whole new life after she's pulled off one last gig with a scumbag crew. Timothy wants to spend a nice weekend camping trip with his family one last summer before his sons grow too old and unruly to care anymore. And Slater wants to kill them all¿ But he and his wife promised they'd refrain during their trip to Diamond Lake. Unfortunately, someone else at the campground is beating him to it and having all the fun.
They Will Surprise You is a campy slasher horror with all the fixings: hedonistic high schoolers, boat shenanigans, forced isolation, wicked traps, a seemingly unkillable serial murderer, unexpected heroes, final girls, scenic vistas, and, of course, family values!