Believing this to be a rescue, Sho leaves his pod and rushes to board the arriving ship, forcing open the capsule's hatch; once he does that, Calvin attacks him and the Soyuz crew.
Sho is believing this to be a rescue. Sho leaves his pod. Sho is forcing open the capsule's hatch. Sho rushes to board the arriving ship, forcing open the capsule's hatch. Calvin attacks him. Calvin attacks the Soyuz crew. He does that.