The multiverse faces a climactic showdown as Captain Carter, Uatu the Watcher, and their allies confront a trio of villainous Watchers. Amidst intense battles, Captain Carter makes the ultimate sacrifice to save her friends, transforming into a cosmic being. The episode concludes with Uatu reflecting on infinite possibilities, hinting at new adventures in the Marvel multiverse while leaving viewers with a poignant farewell to Peggy Carter.