Tragedy struck in "Marvel's Agents of S.H.I.E.L.D." Season 5, and everyone will have to cope in Season 6.

ABC has revealed a first look at the upcoming season, and the video shows the members of the organization having to move on without Agent Phil Coulson (Clark Gregg). As we learn, he's really dead. It's an adjustment and a sad one, of course. We see Melinda May (Ming-Na Wen) grieving her lost love, Alphonso "Mack" MacKenzie (Henry Simmons) getting used to being in charge, and more.

Meanwhile, there's still peacekeeping and spying to be done, and the agents of S.H.I.E.L.D. have to do it. The action-heavy video offers us a glimpse at some of the major threats the agents will face in the upcoming season. It'll be intense.

Check out the first look below.

The exact "Agents of S.H.I.E.L.D." Season 6 premiere date hasn't yet been announced, but the show returns to ABC sometime this summer.