Adults in midlife can be significantly helped through group treatment that is sensitive to the developmental issues of the age period. The author suggests that the developmental crisis of midlife--Generativity versus Stagnation--can, through unconscious processes, become a group crisis as well. A group state of stagnation, enveloping the members as well as the leader, if understood and worked through, can significantly facilitate the developmental progress of its midlife members. A clinical example demonstrates how a therapist helped his midlife group move out of stagnation and toward generativity.