The CW has released a new extended trailer for the April 28 episode of "DC's Legends of Tomorrow," titled "Leviathan."

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In the promo, we're treated to knew footage of Cassandra Savage (guest-star Jessica Sipos), Vandal Savage (Casper Crump) assembling his army and, most notably, Hawkgirl (Ciara Renee) acquiring her trademark mace. What could she be up to?

Check out the extended "Leviathan" trailer below:

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LONDON 2166 - Rip (Arthur Darvill) takes the team to London in the year 2166, three months before his family is killed. He believes this to be their final opportunity to take out Savage (Casper Crump) who is, unfortunately, at the height of his power. However, the team discovers two key elements to defeating him - Savage's daughter (guest star Jessica Sipos) and the means to kill Savage once and for all.

"Legends of Tomorrow" airs Thursdays at 8/7c on The CW.