prevent the end of the world?

Thats whatMarvels Agents of S.H.I.E.L.D.will aim to answer when the show returns Friday night.

The future, as fans have come to see, is pretty bleak.

CLARK GREGG, IAIN DE CAESTECKER, MING-NA WEN, HENRY SIMMONS

Credit: Byron Cohen/ABC

Can this future be prevented?

Of course they want to prevent that, executive producer Maurissa Tancharoen says.

But weve also established on the show that you cannot adjust what happens in time.

From my characters point of view, theres no breaking that.

A little bit of the mystery is how would we stop it if we could?

Thats some of the stuff were going to explore in the back half.

So lets hope it is preventable, but well definitely explain why we saw her that way.

That future is something Mack (Henry Simmons) will stop at nothing to prevent.

Some characters believe that its inevitable, but Mack doesnt believe that.

He believes theres a possibility to change the course of what may come.

Maybe, we hadnt even thought of that, Whedon says coyly.

Well have to explore that idea.

Marvels Agents of S.H.I.E.L.D.airs Fridays at 9 p.m.