Supergirl Season 5 Review: 6 Ups & 3 Downs From Crisis On Infinite Earths, Part 1

A shocking death, a wave of antimatter and even some Titans. Yes, the Arrowverse's Crisis has begun.

By Michael Patterson /

The CW

Contains spoilers for Supergirl Season 5, Episode 9.

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Countless teases, multiple timeline alterations and two half-seasons full of buildup have led us to this moment: The Crisis is upon us.

Yes indeed, after five years of references to the crossover to end all crossovers, the skies turned red, the antimatter threatened and the heroes of the Arrowverse united to save the multiverse in Crisis On Infinite Earths.

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Kicking off on Supergirl, the crossover saw the Anti-Monitor's wave of energy make its way towards the Girl of Steel's home planet and thus, upon The Monitor's request, Harbinger (formerly known as Lyla Michaels) gathered Green Arrow, The Flash, Batwoman, White Canary, The Atom, Superman and Lois Lane and brought them all to Earth-38's DEO in order to prepare them for battle. And just like that, everything the Arrowverse had been building to had finally begun.

To say there was a lot riding on the success of 'Crisis On Infinite Earths, Part One' would be something of an understatement. Thankfully, it was an opening that succeeded, kicking off TV's biggest crossover with an offering that set the stage for grander adventures to come and, more than anything, left us with one of the most jaw-dropping cliffhangers the Arrowverse has ever seen.

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First, the negatives...