Achieving success with their body swapping machine was a breakthrough, but neither Dr. Julien Park nor Dr. Amanda Lee expected to be the ones swapped by their own invention. It was an accident while testing that caused it, an accident that also caused great damage to the machine. Both Julien and Amanda worked hard to fix it, but it was Amanda who had to deliver the bad news to Julien. She had made the final adjustments to fix the device. It would work again, but there was a problem. All of the animals she had tested on swapped fine, but the swap back kept killing them. She was afraid that a second swap was just too much for a brain to handle. Julien couldn't help himself as a tear streamed down his face as she told him the news. They'd be stuck in each other's bodies for the rest of their lives.