'Supergirl' Recap With Spoilers: "Far From The Tree"

Act I

J'onn and Kara walk into a garage where a classic car is sitting, it's J'onn's spaceship. The car rolls out of the garage and quickly turns into a spaceship, which flies off.

Alex and Maggie are having dinner with Eliza. Eliza finds out that Maggie doesn't have any childhood picture and the latter reveals that she hasn't spoken to her parents since she's was 14 — after coming out, her parents kicked her out of the house and left her with her aunt.

J'onn and Kara land on Mars and begin investigating M'gann's warning call. They find M'gann underground with a group of fellow warriors. She informs them that the White Martians have a Green Martian prison camp, one which his father is imprisoned.

Act II

M'gann says the White Martians believe the J'onns father knows how to operate a legendary weapon they're after — something that would allow them to know the location, and subsequently kill, any and all resistance fighters.

M'gann and her fellow Resistance fighters tell J'onn that he needs to go to his father and persuade him not to help the White Martians.

Alex and Maggie are talking about Maggie's relationship with her parents. Alex asks if Maggie's ever tried contacting them again and Maggie says she heard from relatives that her mother has removed all pictures of her from any family photo album. Alex tries persuading Maggie to invite her parents to their wedding and the latter just wants to drop it.

J'onn approaches the place where his father is being held captive. After talking, J'onn's father thinks J'onn is actually a White Martian posing as his son — he says his son never would have left Mars to flee to Earth.

Back on Earth, Maggie wakes up and decides to call her father. She leaves him a voicemail to fill him in on some of her life updates and informs him that they're hosting a wedding shower and invites him to come.

When J'onn returns to M'gann's hideout, the Resistance fighters say if J'onn can't get through to his father, they won't have any choice but to kill him.

Act III

Maggie finds out her dad is coming to the bridal shower and picks him up from the bus stop. The two go on a walk and her dad tells her that she's been keeping up with all of her cold cases files online.

J'onn goes back to speak to his father, who still thinks he's a White Martian. J'onn's father begins talking about the weapon the White Martians want access to.

Back at M'gann's lair, one of her Resistance fighters knocks her out, saying he's doing it for their own good. Kara rushes to find J'onn and the pair, along with J'onn's father, begin to work on their escape plan.

Act IV

They take M'yrnn back to their former home, and he gets upset and slaps J'onn.

Alex and Maggie are having their bridal shower. Eliza begins to have a trivia contest, with a drunken Winn beginning to ask questions. Maggie's father comes in with a bottle wine for the soon-to-be newlyweds. Maggie introduces her father to Alex.

Looking at the pictures of the couple as kids, Maggie's dad realizes there isn't a picture of her on the board. He takes a picture out of his wallet and pins it to the board.

The couple begins opening presents and as they kiss, Maggie's father gets visibly upset and walks out of the party and Maggie soon follows and two discuss whether or not the world has changed in terms of accepting homosexuality.

Back on Mars, Kara is talking to M'yrnn about helping save his home planet. She tells him she understands why he doesn't want to believe that his son is still alive and persuades him to give J'onn a chance to prove himself.

J'onn touches his father's head and the two relive a memory of J'onns daughters running throughout their home. M'yrnn finally realizes that his son has come back home to save him. He tells Kara and J'onn what the White Martians are doing with the staff and the group races off to stop them.

Act V

The group converges on the group of White Martians using the staff and a large fight breaks out. The White Martians begin using the staff to emit a noise that's rendering the Green Martians and resistance fights unconscious.

With the help of M'yrnn and Jonn's spaceship, Kara is able to use the staff to dispose of the rest of the White Martians before handing over the staff to M'gann and the Resistance.

Act VI

The Resistance decides to give the staff back to J'onn — they want him to take the staff to Earth to hide it.

Back on Earth, Maggie tells her father that he gave her the best gift of all — he made her realize that she doesn't need him to even like her anymore. She's comfortable in her own skin and surrounded by people who love and support her. She gives him back the baby picture he pinned on the board and walks off.

Maggie and Alex are talking about getting closure and the latter hints that it may change her mind about wanting kids. Maggie still says that Alex is the only thing she needs, hinting that she doesn't want kids.

Kara and J'onn return to Earth, and it's revealed that they brought M'yrnn with. J'onn hugs Kara, letting her know that this was something he never would have been able to do without her. Kara welcome M'yrnn to Earth and flies off.

The father and son start walking home.