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Supergirl Punches a T-Rex in Season 5 Premiere Clip

SPOILER WARNING: This article contains major spoilers for "Event Horizon," the Supergirl Season 5 premiere.

Season 5 of Supergirl has kicked off with an explosive start full of new looks, reveals and epic betrayals as the Arrowverse series moves towards the Crisis on Infinite Earths event.

The CW has released a clip from the Season 5 premiere showing the eponymous superhero in her new outfit battling against a dinosaur, with guest star Kate Micucci watching from shelter.

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As Kara is thrown by the tyrannosaurus through a banner of Lex Luthor, Martian Manhunter arrives to engage the creature telepathically before its abrupt retreat in a spaceship.

The Season 5 premiere had revealed that J'onn J'onzz had a long-lost brother from Mars who swore revenge against him and his family, taking on the form of a little girl before transforming into the rampaging dinosaur. While J'onn must contend with the sibling he never knew he had, Kara finds herself dealing with a new villain in National City named Midnight.

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Airing Sundays at 9 p.m. ET/PT on The CW, Supergirl stars Melissa Benoist as Kara Danvers, David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen and Chyler Leigh as Alex Danvers.

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