WithSupergirls third season just days away, lets take a look back at what happened.
In the season premiere, Kara discovers another mysterious alien visitor in the form of Mon-El.
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Meanwhile, Cat Grants open job offer throws Kara for a loop.
Clark sticks around for a while and he and Kara enjoy saving the city as a superhero double-act.
Eventually he agrees to train her as a reporter.
Mon-El wakes up at the DEO and attacks Kara before escaping.
Maggie and Alex follow a case to an underground alien fight club.
With Mganns help, Roulette captures Jonn before Kara manages to save them both.
Meanwhile, Alex and Maggie grow closer and they both acknowledge that there may be something romantic between them.
Eventually, the two come together with Maggie declaring that life is short.
Lacking a purpose, James decides to become the vigilante Guardian and eventually recruits Winn as his confidante.
They both agree to keep their activities a secret from Kara, Winn reluctantly.
When a new vigilante starts killing criminals, they work together to stop him.
Mon-El is captured by Cadmus, and Lillian demands that Kara come to rescue him.
Cyborg Superman travels to the Fortress of Solitude asking about the Medusa project.
In the following episode, he releases a deadly virus into the alien bar which kills everyone except Mon-El.
This virus is revealed to have been created by Karas father Zor-El, to protect Krypton from invading aliens.
Upon returning home, Mon-El reveals he wants to become a superhero.
She rejects James request that they work together, causing a rift between the pair.
Her former mate Armek arrives and, after he is killed, Mgann returns to her home planet.
When she is arrested, Kara is the only person who continues to believe in her.
The DEO rescue Jeremiah from Cadmus, but Mon-El is suspicious of him.
Using this list, Lillian begins capturing known aliens in an attempt to deport them to another planet.
Alex convinces Jeremiah to help them stop the launch of the deportation ship.
to protect Kara from his mother, Mon-El agrees to leave Earth if Rhea spares her life.
He later discovers that she did so to pay off her brothers debt, and so forgives her.
She later begins working with Winn and James.
After requesting that Rhea withdraw, a returning Cat Grant and President Marsdin are attacked by the Daxamites.
In the process of rescuing them, Kara discovers that Marsdin has been an alien all along.
After revealing that she will not concede even upon losing, Kara orders Lena to launch the gear.
A flashback to a pre-destruction Krypton shows the evacuation of another child.
