Redgrave is the leader of the Alpha attachment that accompanies Lucy Tak's expedition to Ecosystem 09 (Nine). Despite being highly trained and equipped for high-risk missions in extreme environments, Redgrave and his Alphas are tested by the unexpected perils encountered on Nine.

Fortunate? What does fortune have to do with anything?
- Redgrave

While the son of a Lucasian Council member, John Redgrave struggled to find the promised peace in the utopian life on Earth. Failed by his society after a teleportation accident that took the life of his mother and left him permanently scarred, Redgrave embraced recklessness as a virtue. While this put him at odds with general Human society, he excelled in the high-risk culture of the Alpha Program, outperforming all other participants.