The Halloween series is probably the most inconsistent horror series ever. According to Bloody-Disgusting, the new film is supposed to take place after Michael Myers' initial rampage in 1978 (Halloween & Halloween II).
Myers is now on death-row and two teens sneak in to watch his execution. One of the teens is the child of a victim of Myers and the other is the child of a police officer who was obsessed with Myers.
Obviously something goes wrong during the execution, thus Halloween Returns to the town of Haddonfield.
This film will not continue with the Rob Zombie remake series and will not be in 3D as previously reported.