Gagarin

The Gagarin is a spaceship owned by the Eligius Corporation which originated from Earth. It is a prisoner transport from the mining ship, Eligius IV. The people in the ship are from before the first Nuclear Apocalypse.

History
In Praimfaya, six years and seven days after Praimfaya, a ship descends down on Earth's surface. It was seemingly involved with the mining of asteroids and the transportation of humans to and from the Asteroid Belt. It was, at first, misinterpreted by Clarke Griffin to be the ship carrying Bellamy and the others back to Earth.

Season Four
In Praimfaya, the Gagarin lands on Earth, carrying prisoners from Cell Block B. This was witnessed by Clarke and Madi.

Season Five
In Eden, after the Gagarin lands on Earth, Charmaine Diyoza, along with the other prisoners have entered outside on the ground.

In Pandora's Box, Clarke and Bellamy, along with Diyoza and the other prisoners flew on the Gagarin towards Polis, where they manage to dig out and open the Second Dawn Bunker. Before releasing everyone else in the bunker, Octavia first comes out of the bunker and sees the Gagarin on the ruins of Polis. After Diyoza and the other prisoners betray Wonkru and holds Abby and Kane hostage, they leave on the Gagarin as it lifts up and flies back to Eligius IV and the Shallow Valley.

In Shifting Sands, the prisoners on the Gagarin, along with Miles Shaw spots Wonkru marching to the desert towards the Valley. Later, on the Gagarin, as the prisoners began torturing Raven Reyes and John Murphy, Shaw intervenes and stops them. After the prisoners leave the room, Shaw helps Murphy escape from the Gagarin, while Raven stays behind. Later, when Diyoza, Shaw, and Paxton McCreary are flying the Gagarin, they began to launch a missile and fires at the Wonkru camp. However, some of the Wonkru members survived the sandstorm.

In Exit Wounds, the Gagarin begins sending food supplies and a message to Wonkru, offering them peace and shelter at the Shallow Valley. Later, the Wonkru members defect towards the Gagarin, in order to head towards Shallow Valley, but were put into shock collars.

In The Dark Year, Clarke shows McCreary the satellite screen in the Gagarin.

In Damocles (Part 1), Raven and Shaw are imprisoned in the Gagarin and McCreary and the prisoners brings them out.

In Damocles (Part 2), Raven is being forced to fly the Gagarin after Shaw is being tortured. As Raven is about to fly the ship, Clarke intervenes, with holding Diyoza at gunpoint. Realizing Wonkru were about to win, McCreary decides to bomb the Shallow Valley and tries to get Raven and Shaw to fly the Gagarin, but however, Clarke, Raven, and Shaw manages to overpower McCreary and his men and kill them. As the bomb is about to destroy the Shallow Valley, Wonkru, Spacekru, and the prisoners went on board the Gagarin and fly up to space as they escape the explosion and the destruction of the valley.

Notes and Trivia

 * The name "Gagarin" could derive from the first man in space, Yuri Gagarin.
 * Showrunner Jason Rothenberg teased that the prisoners aboard the ship will, at first, be antagonists. Unlike the juvenile delinquents, these arrivals are "real hardened criminals" and will be a threat.
 * The prisoners are from before the first nuclear apocalypse and were in hypersleep.
 * They include: Charmaine Diyoza, a former military strategist; Paxton "Graveyard" McCreary, an enforcer from a powerful crime syndicate; and Vinson, a serial killer.
 * Miles Shaw is also aboard the ship, but unlike the others, he is not a prisoner and instead is an Eligius IV crew member.