Watch Supergirl Online: Season 2 Episode 19

Did Kara manage to save Alex from a certain death?

That was a key question on Supergirl Season 2 Episode 19 when Alex was kidnapped. 

Kara was shocked to learn it was in retaliation to someone being put in prison.

Dinner with the Enemy - Supergirl Season 2 Episode 19

Supergirl and Maggie joined forces to find a weak spot amongst the new villains who wanted to inflict terror on National City. 

Meanwhile, Rhea had an interesting proposal for Lena. 

Use the video above to watch Supergirl online to get up to speed with the latest developments for the characters as they battle a new evil. 

Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.