Warning: This story continues major spoilers from Tuesdays episode ofThe Flash.

Read at your own risk!

Future Cisco (Carlos Valdes) had previously mentioned that Savitar killsnearlyall of them.

Cause and Effect

Credit: Katie Yu/The CW

The one that survives is the one that goes on to become Savitar.

So the other thing Savitar needs?

Well, he declined to share that secret with Barry.

Hence turning to Captain Cold (Wentworth Miller) in next weeks hour to steal it.

Will they succeed and therefore prevent Savitar from killing Iris?

Well find out whenThe Flashairs Tuesdays at 8 p.m.

ET on The CW.