Samson, as he was nicknamed by Dr. Ian Kelson, is infected with a variant of the Rage Virus that, in addition to the standard symptomology, also acts like a steroid. This results in it having increased strength and resilience compared to regular members of The Infected, allowing it to lead them in hunting packs. Samson also appears to demonstrate a semblance of intelligence and cognitive function
After the NATO North Sea Patrol, survivors of the sunken HMS Öresund are forced to beach in Northumberland; several are killed by regular infected and two by Samson, an Alpha who rips the head off one and uses it to kill another. Only Erik Sundqvist is able to escape. Samson later catches up to Sundqvist whilst he is assisting Isla and Spike, who observe an infected woman give birth to an uninfected baby. Samson then lifts Sundqvist from the train carriage and rips his head off, killing him as a result. Samson then chases after Spike and Isla but ends up getting subdued by a morphine dart from Dr. Kelson. Samson later returns to the Bone Temple to try and capture Kelson but is prevented from doing so by Spike, who injects him with a further high dosage of morphine