'The Walking Dead' season 7 spoilers: Rosita and Sasha to go on a suicide mission; Why did Eugene choose to side with Negan?

Rosita (Christian Serratos) and Sasha (Sonequa Martin-Green) will be going on a high-risk mission. Meanwhile, Eugene (Josh McDermitt) has chosen to become Negan's (Jeffrey Dean Morgan) ally for survival reasons.

Previously on "The Walking Dead" season 7, Rosita has decided that she wants to kill Negan and recruited Sasha to help her execute her plan.

Given that all those who attempted to take a hit on Negan failed and were either killed or taken as his hostage, Rosita is making sure that neither will happen to them by being careful so that the Saviors will not catch them alive.

Rosita and Sasha's mission to kill Negan appears to be a suicide plan. Could it be the show hinting which characters will be killed off next?

Meanwhile, Eugene has pledged his allegiance to Negan.

This might be a big surprise to the fans of "The Walking Dead," especially since he was one of the people who attempted to kill Negan. However, McDermitt shared why his character chose to become one of Negan's Saviors.

"He doesn't want to be scared anymore. He's tired of living in that fearful place that he's in. ... I think there's a line before Eugene says 'I'm Negan' which is even more important – and it's when Negan says, 'Look, you don't have to be scared anymore,'" McDermitt said during a roundtable interview with Metro.

"That right there, gives him a sense of calm. That's all he's searching for – just to be left alone and not have this madman with a bat coming after him," the actor added.

McDermitt said that he's not sure whether his character has any disagreements with Negan at this point, but at the same time, he doesn't want to know if he does. Eugene is safer if he is on Negan's good side.

"The Walking Dead" season 7 episode 13 premieres on Sunday, March 12, at 9 p.m. ET on AMC.