Peggy continues her investigation into Isodyne, and the trail leads her to the Atlas Club. However, Jack refuses to believe her testimony and continues meeting with Vernon. Meanwhile, Calvin sends his assassin to dispose of Peggy, and Howard meets with a scientific genius.

When Peggy learns that Whitney and Calvin plan to steal atomic bombs from Roxxon to recreate the zero matter experiment, she organizes a team to stop the couple and get the bombs first.