Indigo Prime Anthropocalypse

"There are an infinite number of realities in the multiverse. With the risk of dimensional instability as an ever-present threat, these parallel worlds all need to be managed. Enter Indigo Prime, troubleshooting reality agents. So what do Indigo Prime want with Lance Corporal Danny Redman? Why is a Neanderthal walking around in modern Britain? How do you catch a dimension-jumping Bewilderbeast?"