Daisy Johnson and Phil Coulson realized after the War against the Inhumans that the world was filled with powered people who could be recruited to S.H.I.E.L.D., not only to benefit the organization but to help them feel as if they "belonged". They started the Caterpillars program to find, train, and have these individuals fight for good. Andrew Garner was asked to be the team's psychologist to evaluate mental combat readiness and the Cocoon was the training facility.