Supergirl - Season 3, Episode 17 - Rotten Tomatoes


Critic Consensus: "Trinity" ties together themes and arcs that have been percolating throughout this Supergirl season, with detailed focus on character reaction and response.

Episode Info

Still reeling after learning about Lena's secret, Supergirl asks Guardian for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the team brace for an epic battle.


Melissa Benoist
as Kara Danvers/Supergirl
Mehcad Brooks
as James Olsen
Chyler Leigh
as Alex Danvers
Jeremy Jordan
as Winslow "Winn" Schott
David Harewood
as Hank Henshaw/J'onn J'onzz
Chris Wood
as Mon-El
Floriana Lima
as Maggie Sawyer
Katie McGrath
as Lena Luthor
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Trinity Videos

Trinity Photos

Critic reviews for Trinity

People are likely to have a lot of feelings about how our characters react to Lena's attempts to help Sam. What really matters, though, is how effectively those reactions are handled, whatever they might be. Are they handled effectively? Well... mostly.

July 30, 2018 | Rating: 4/5 | Full Review…

It's an all-out fight.

July 27, 2018 | Full Review…

Drama needs conflict. I totally get it. But it bugs me when the conflict generated isn't based in character, but rather, in writers slightly altering a character for no reason just to force certain reactions make certain plot points inevitable

July 27, 2018 | Full Review…

Right at the end of the episode, Lena dropped a big bomb on us.

July 24, 2018 | Rating: 3.5/5 | Full Review…

Supergirl certainly struck gold with both the character of Sam, the tormented Worldkiller, and with Odette Annable, who plays her so beautifully.

July 25, 2018 | Rating: B | Full Review…

Typically, large-scale narrative benefits from a sense of intimacy, as it grounds them in personal stakes. Here, though, the personal stakes just make the narrative seem small.

July 24, 2018 | Full Review…

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