"Think about it! If we ever get tired of something, take prison for example, we could just kill our selfs and we'd wake up in our 8 year old bodies with our records clean! We could do anything we wanted and nobody would remember but us! Isn't that great? " 

" If you think being stuck in an infinite time loop that de-ages us back to 8 so we can live our lives again just for the process to start all over when we die is great, then yeah, it's great." 

Some how Mark and Jackson get stuck in a time loop. Now whenever one of them dies they both wake up back in their 8 year old bodies. And the best part is that no one remembers anything but them.