Justin Wack and the Big Time Hack

After swapping places with a caveman, Justin needs to back to his own time again. But the caveman-gone-hipster that took his place seems quite content in the modern world… The caveman might want to try out the local dating scene, maybe he’ll even run into Justin’s ex-girlfriend? Trying to get back to the present, Justin might first have to first pass through the future… Meanwhile, mechanical agents are looking to neutralize any unauthorized time travelers… With a future looking pretty grim, is there a way for our heroes to change the cause of history?