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Welcome to Earth
An attack is made on the President as hot-button, alien vs. human rights issues heat up in National City. Supergirl and the DEO are assigned to protect the President and bring in the responsible party. Alex teams up with Detective Maggie Sawyer to investigate the case while Kara searches for a recently escaped Mon-El, who she fears may be the alien behind the assault.
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Other episodes for this season
![The Adventures of Supergirl](https://image.tmdb.org/t/p/w300/8OrNPwjmi3V6er2PvdtBQEy5YJu.jpg)
![The Last Children of Krypton](https://image.tmdb.org/t/p/w300/8rjtI2WOY3HD55E1mUv1X3o1vHR.jpg)
![Welcome to Earth](https://image.tmdb.org/t/p/w300/kW74ZQMbhtShHbKns811MVOWba0.jpg)
![Survivors](https://image.tmdb.org/t/p/w300/g4U7rfbIJIx39jldrL3qpv8k8QY.jpg)
![Crossfire](https://image.tmdb.org/t/p/w300/8b5jBxhf9CIVNWhCwn1kFW3BoST.jpg)
![Changing](https://image.tmdb.org/t/p/w300/r26Ah9bkfhwjMcywctCEoYkMtyI.jpg)
![The Darkest Places](https://image.tmdb.org/t/p/w300/aaFEI7iEVom8fx6Za4KnCFn8Qn8.jpg)
![Medusa (I)](https://image.tmdb.org/t/p/w300/qwXv7sF1TL8b76otxzLtlbsBux3.jpg)
![Supergirl Lives](https://image.tmdb.org/t/p/w300/yijh9yvnAUWtMhYE6i3gVRHTyvQ.jpg)
![We Can Be Heroes](https://image.tmdb.org/t/p/w300/miJROofZeyPLt67YTTo4oYRDAyh.jpg)
![The Martian Chronicles](https://image.tmdb.org/t/p/w300/bNSvRaDWf41SVJMvAiXdJgqUa6D.jpg)
![Luthors](https://image.tmdb.org/t/p/w300/gRD7sp4DHoyH7nXGvicz54hM8vs.jpg)
![Mr. & Mrs. Mxyzptlk](https://image.tmdb.org/t/p/w300/cYyqcy2aU1KLehusR6kNwkIBqEv.jpg)
![Homecoming](https://image.tmdb.org/t/p/w300/wxR12C4pZAumbZDCjnRotS5Kwid.jpg)
![Exodus](https://image.tmdb.org/t/p/w300/d2Z55Gr6aYIrxnYipulAHQLRA32.jpg)
![Star-Crossed (I)](https://image.tmdb.org/t/p/w300/oQnf3VnpueLImlOkadqdC25RuHQ.jpg)
![Distant Sun](https://image.tmdb.org/t/p/w300/hYkXtRNhtrj9Q7AkvuVxWCNsuRJ.jpg)
![Ace Reporter](https://image.tmdb.org/t/p/w300/jQTkH1GNnPs7bcaGh0DvH7RMuVF.jpg)
![Alex](https://image.tmdb.org/t/p/w300/gtCqowXKJKD7d9GUoN9z2V5hgWU.jpg)
![City of Lost Children](https://image.tmdb.org/t/p/w300/bS0jNdG9NB3DyNQryp4i5OERuwc.jpg)
![Resist](https://image.tmdb.org/t/p/w300/AgDCdXOL1aSw5Zm4hISy8wJV3F4.jpg)
![Nevertheless, She Persisted](https://image.tmdb.org/t/p/w300/1gucSemEaVASocbi0BiAMHMElEd.jpg)