The agents will immediately spring into action when "Marvel's Agents of S.H.I.E.L.D." returns for the second half of season 3.

In the teaser for the second half of "Marvel's Agents of S.H.I.E.L.D." season 3, the government is starting to worry about the destruction that the Inhumans could bring to society. This prompted U.S. President Matthew Ellis (William Sadler) to go to Phil Coulson (Clark Gregg) for help.

"There's a problem. Inhumans. We have to do something," the president says in the trailer.

The teaser also shows a lot of Inhumans as well as the highly anticipated appearance of the group called the Secret Warriors that Daisy (Chloe Bennet) had been developing in the first half of the season.

One of the possible Secret Warriors recruit could be Elena "YoYo" Rodriguez, also known as Slingshot. In the trailer, the character portrayed by Natalia Cordova-Buckley is seen confronting Mack (Henry Simmons). She also shows him the superhuman speed that she possesses when she run away from him, as well as her precise slingshot skill. If the series will stick to the comic book character, Elena will become one of the Secret Warriors of the S.H.I.E.L.D.

Grant Ward (Brett Dalton) is also seen in the trailer. The agent-turned-traitor had been killed by Coulson in the midseason finale of season 3. However, Ward's body will be inhabited by a mysterious Inhuman. This could mean trouble for Coulson.

In an interview with IGN in January, showrunner Maurissa Tancharoen said that Coulson will "definitely see the emotional consequences" of killing Ward.

"He's definitely crossed a line and he knows this," co-showrunner Jed Whedon also said.

Meanwhile, the synopsis for the midseason premiere episode of "Marvel's Agents of S.H.I.E.L.D." season 3 titled "Bouncing Back" reads:

"In the aftermath of his trip to Maveth, Coulson is more determined than ever to get to Gideon Malick and put an end to Hydra once and for all. Daisy and the team encounter more Inhumans who have powers like they've never seen before, but will they be friends or enemies of S.H.I.E.L.D.?"

The series returns on Tuesday, March 8, on ABC.