Supergirl S3E17: Trinity
- Aired: 2018-05-07
- Time: 20:00:00
- Runtime: 60 minutes
Overview
Supergirl discovers that she has a mental link to Sam and Julia, and takes Lena and Alex with her to rescue them. Meanwhile, James faces a tough decision when he must decide whether to investigate Lena or not after she kept Reign's existence a secret.