"I've got him in a Cryostasis Chamber in the back of the van for 58 more minutes before the juice runs out."
Phil Coulson[src]

The Cryostasis Chamber is a machine designed to place a subject into suspended animation by lowering their entire body temperature to absolute zero (-273.15 ˚C, or 0 Kelvin).


Winter Soldier

Bucky on Ice

A photograph of the Winter Soldier within the chamber

HYDRA placed the Winter Soldier in one of these chambers to keep him under control. They would only unfreeze him when they had a mission ready. That way, he could last the decades, and not succumb to age and become wasted. Furthermore, he could not reactivate his lost memories. As soon as the mission was over, HYDRA would return him to this chamber.[1]


"What you're doing is against protocol, so if you endanger an operation or if anyone gets hurt, I'll reassign you to Barrow, Alaska, and you'll spend the rest of your years pulling the night shift guarding Blonsky's cryo-cell."
Phil Coulson to Grant Ward[src]

After the Duel of Harlem, Blonsky was imprisoned in a Cryostasis Chamber in Alaska. Phil Coulson threatened Grant Ward to post him to guard Blonsky in his cryo-cell on the night shift if his sexual relationship with Melinda May had adverse effects on Coulson's Team.[2]

Carl Creel

Carl Creel was placed in a cryostasis chamber after Phil Coulson incapacitated him with a modified version of the Overkill Device.

Coulson delivered Creel in the chamber to Glenn Talbot inside a van. He warned Talbot that the chamber's power had less than an hour before it deactivated because it needed a more stable power source. [3]

The Winter Soldiers

Dead Josef

One of the Winter Soldiers on his Cryostasis Chamber.

When Howard Stark managed to either create or obtain several compounds of the Super Soldier Serum, HYDRA sent the brainwashed James "Bucky" Barnes to kill both Howard and his wife, make it look like an accident, and retrieve the serum. After delivering the serum to HYDRA, they used the serum to create several more super soldiers, all of whom were intended to work alongside Barnes and share the mantle of "The Winter Soldier". However, after they managed to overcome their brainwashing and attempted to fight back over their captors, they were kept in cryostasis at the HYDRA Siberian Facility until such a time when they were needed. While they were asleep, HYDRA continued to use Bucky Barnes as their master assassin.[4]

As Helmut Zemo manages to temporarily revert Bucky Barnes back to his Winter Soldier state, Bucky gives up the location of the other super soldiers and reveals his part in the death of Howard and Maria Stark. Zemo then traveled to Siberia and murdered the other super soldiers in their sleep, leaving their dead bodies within the Cryostasis chamber.

Hibernation in Wakanda

Frozen Bucky

Bucky Barnes being frozen once more.

Bucky Barnes, who had found sanctuary and asylum in Wakanda, voluntarily allowed himself to be placed in cryostasis until Wakandan scientists could find a way to reverse his brainwashing.[4]