A Kentucky miner's son who can launch himself into the air and cannot stop, which is exactly how the accident happened.
Samuel Zachary Guthrie is an American mutant from Kentucky who can propel himself into the air and is invulnerable while doing it. Charlie Heaton plays him.
The five children in this film are held on the argument that they are dangerous, and each of them arrived believing it. Sam is the clearest case: his power went off underground, in a mine, with his father’s crew in it.