Ray Palmer aka Atom
Ray Palmer aka AtomFacebook/Legends of Tomorrow

"The Magnificent Seven" are back from their adventure at Salvation, Dakota in 1871, but new threats await them in "Legends of Tomorrow" Season 1 episode 12. Chronos (Dominic Purcell), who was Mick all along, reveals to the rest of the gang that Pilgrim (Faye Kingslee), the deadliest assassin working for the Time Masters, has been assigned to kill all of them.

However, the main catch is that she is going after their younger versions. If their younger versions are killed the legends will cease to exist in the current timeline as well. This means, she could go after any of them, to any time when they were young and kill them when they are the most defenceless.

The promo suggests that the Pilgrim is definitely going after Mick and Sarah (Caity Lotz). The episode will have scenes in Star City, specifically the police station, where Sarah's father Quentin Lance (Paul Blackthorne) is a cop. Sarah has her fringes, meaning Pilgrim may be going back to a time right before Sarah and Oliver's (Stephen Amell) boating accident.

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Meanwhile, Mick is seen in his teenage version, just starting out as an arsonist. In the promo he is captivated by the flames eating a house as panicking people scurry around. The promo also shows Ray (Brandon Routh) telling the teenage Mick (Mitchell Kummen), "Come with me if you wanna live."

This puts Ray in a very precarious position, combining that with older Kendra's prediction from "The Magnificent Seven," fans are worried about the superhero. The old angry, old and bitter Kendra had warned Kendra (Ciara Renée) of this timeline that trying to find love with anyone other than Carter (Falk Hentschel) is futile.

After watching the promo, fan Margaret Novak raised her concern on "Legends of Tomorrow" Facebook page, "Hope they don't kill Ray. I feel like they're setting us up for him to die when they said Kendra's relationships all end in heartbreak or tragedy. [sic]"

Other the other hand, it looks like Pilgrim has her own reasons to do the Time Masters' bidding. In the promo she gets angry when one of the Time Masters says, "This will all be over quickly." An optimistic soul can trust that she may have a change of heart and side with the Legends instead of the Time Masters before killing anyone.

Watch Season 1 episode 12 of "Legends of Tomorrow" at 8 p.m. (EST) on Thursday, April 21. You can also stream "Last Refuge" via CWINGO and The CW Seed.