Watch DC's Legends of Tomorrow Online: Season 4 Episode 12

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What happened in 2019?

On DC's Legends of Tomorrow Season 4 Episode 12, the team realized that their efforts to keep the rifts in time from leading to disasters had adverse effects on the year 2019.

Sara found herself at the brink of destruction while trying to save Ava from a fate wors than death.

However, someone she knew from another DC universe show neeed her help.

Meanwhile, Nora and Constantine worked together to take down a powerful demon.

Headed to 1809 - DC's Legends of Tomorrow

Elsewhere, Zari considered getting unsolicited advice from Mona, Charlie and Roy.

How did it all play out?

Use the video above to watch DC's Legends of Tomorrow online right here via TV Fanatic.

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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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