Cranks

Cranks merciless killing machines who roam The Scorch killing & or attacking whoever & whatever they find. They range from two different sorts of the infection.

The Gone is a stage of The Flare- it is also the most dangerous. In the book a crank is just simply a human being- but filled with rage and the intent to kill, the movie adaptation just makes them zombies.

However, "The Gone." are practically zombies, the host loses all self-consciousness and eats & kills everything in sight. They even hurt other Cranks in The Gone.

If The Flare is not treated- a crank is the after-effect of not doing so.