The unrated extended version contains several new/extended scenes:
Skip tells Cherry that she's funny like Chris Rock while they talk in the dressing room.
The Blocks wake up for work. They wake up on opposite sides of the bed, and William tells Dakota to make some coffee as she looks out the window and sees the green gas in the sky.
Dakota Block runs the water in the sink and it cuts to Cherry washing her leg in the bathroom of The Bone Shack. She takes out a piece of glass that lodged into her leg from when she fell by the side of the road earlier.
J.T. opens kitchen door and it transitions to the Blocks arriving at the hospital.
Doc Block explains Joe's wound and asks him how long he's really had it.
Dr. Crane asks Doc Block if he wants to cut off Joe's arm, or at least watch. He says no, and Crane says "suit yourself."
J.T. cuts up some meat and works on his perfect recipe while talking on the phone. He hangs up and goes outside, where he sees a couple of sickos stand by the gas pumps. He offers them some meat, and when they don't respond he assumes that they are from a rival restaurant. He tells them that they'll never get his recipe, then he eats some meat and goes back inside.
Earl McGraw is introduced at the police station. El Wray asks about Ramona, and he says that she's not doing too well. She's dying from lung cancer, from smoking every day. McGraw asks El Wray if he smokes, and he says no. He says that it's probably good that he doesn't, and then he leaves. El Wray lights up a cigarette, and Hague starts to interrogate him about the gun and Cherry's missing leg.
Deputy Tolo panics at the hospital and accidentally shoots an innocent bystander.
El Wray grabs some gloves when he enters the hospital while two sickos eat Paramedic #2. The sicko on the left is Zoe Bell, and they tear into his chest.
After the cops go to The Bone Shack and find J.T., he tastes some sauce and says that he's finally found his perfect recipe. He wonders what the different ingredient is, and Hague tells him that he's tasting his own blood.
When they arrive outside of McGraw's house, Tony shows Dakota that his tooth fell out. When she smiles, he sees her chipped tooth and says that they're toothless buddies.
When Doc Block arrives outside of McGraw's house, he tells Dakota "I'm going to eat your brains and gain your knowledge."
Additional shots during the sex scene.
While in jail at the army base, El Wray asks about using some chemicals to act as an antidote for the gas. Abby tells him that it wouldn't work, and it would cause them to bleed out of every hole in their bodies.
Additional shots in the final action sequence.
Additional shots of the survivors getting into the helicopter.