The Descent: Part 2 (2009)

Sarah emerges from the caves, bloody and in shock, and is taken to the hospital. The local Sheriff interrogates her but she can not provide any info on what happened to her friends as the trauma she's suffered has made her lose her memory.

Against doctors orders, the Sheriff decides to bring Sarah back to the caves in order to find out what really happened. Sarah, the Sheriff, and a rescue squad head underground in an attempt to rescue Sarah's friends and restore her memory.

The Sheriff has no sympathy for Sarah and suspects her in the disappearance of her friends. The Sheriff is an idiot and you will loathe him. What a great idea to bring a trauma victim back to the scene of their trauma. Nothing unprofessional about that.

Shortly after they enter the caves, they find the first body and the creatures start coming after the rescue team. The Sheriff repeatedly screws things up. He tries to give orders to the rescuers even though he knows nothing about caving. He shoots his gun and causes a cave in. He handcuffs himself to Sarah, which is an incredibly stupid thing to do in a cave where you may have to squeeze through a narrow opening and creatures are chasing you in order to kill you. Boy, is he annoying!