St. Louis (KSDK) -- The Boomerang roller coaster is coming to Six Flags St. Louis.
It will become the park's ninth roller coaster when it opens in the spring of 2013.
The 28-passenger Boomerang trains are pulled up 125 feet backwards to the top of hill and then released to shoot through loops and a half cork screw. The train then reaches another hill and then sweeps riders back through the track at 50 mph.
Click on the video player below to see a promotional video for the Boomerang roller coaster.