Lena's ex-boyfriend Jack Spheer comes to National City to reveal his breakthrough in nanotechnology that has the potential to eliminate all diseases.
Episode rating
Cast of episode
55
37
8
- Kara Danvers
- Lena Luthor
- Mon-El
- Maggie Sawyer
- Winn Schott
- James Olsen
- Alex Danvers
- J'onn J'onzz
- Rhea
- Lyra Strayd
- Jack Spheer
- Beth Breen
- Snapper Carr
- Derrick Simmons
- Brian
- Joe
- Press
- DEO Agent
- Argo Gentlewoman