Watch Marvel's Agents of S.H.I.E.L.D.

This is their most important fight, and it will take the help of friends and teammates, past and present, to survive.

With their backs against the wall and Nathaniel and Sibyl edging ever closer to eliminating S.H.I.E.L.D. from the history books, the agents must rely on their strengths to outsmart and outlast the Chronicoms. This is their most important fight, and it will take the help of friends and teammates, past and present, to survive.

With the help of Kora on the inside, Sibyl and Nathanial continue their fight to shape a dark new future for S.H.I.E.L.D., managing to stay one step ahead of the agents along the way. If the team is going to turn this one around, they'll have to get creative, and maybe even a little out of this world.

A time storm ravages the Zephyr, propelling it toward destruction while simultaneously forcing Daisy and Coulson to relive their failed attempts to save the team over and over, until they find a solution or are swallowed by the storm. Making it to their next destination will take trust, courage and sacrifice from everyone on board, but it will all come down to having enough time.

With the Zephyr's time drive malfunctioning, the team is quite literally hurling toward disaster and Yo-Yo may be their only hope. The only problem? To get her powers back, she'll need to enlist the help of an old adversary and revisit part of her past long hidden away.

After being unexpectedly stranded in 1982, Mack retreats to his childhood home to process the death of his parents, while Deke gets to work scouting a chart-topping group of new agents. With no idea if or when the team is coming back for them, time seems to finally be on their side ... at least until the killer robots show up.

The team must scramble to rescue Mack's parents, save S.H.I.E.L.D. from a chronicom infestation and fix the ship, all before the next time-jump. Meanwhile, Daisy and Sousa find themselves at a disadvantage against a power hungry Nathaniel Malick and his goons, and Coulson will have to do the thing he does best in order to save the future.

After a bumpy landing in the disco decade, the team

With the identity of the timeline-unraveling "thread" revealed, the team's mission to protect him at all costs leads each agent to question their own values.

Coulson and the Agents of S.H.I.E.L.D. are thrust backward in time and stranded in 1931 New York City. With the all-new Zephyr set to time-jump at any moment, the team must hurry to find out exactly what happened. If they fail, it would mean disaster for the past, present and future of the world.