Murphy (Chastain), now an adult, has been assisting Dr. Brand with his research. On his deathbed, he admits to her that Plan A was not feasible â he has known since Endurance departed. He reveals that Plan B was the only plan all along. In a recorded video session Murphy notifies Amelia of her father's death, accusing her and Cooper of abandoning Earth. Believing the equations can be solved, she continues working on a solution to Plan A knowing she needs more data on gravitational singularities.