Marvel's Agents of S.H.I.E.L.D. is closing out the first half of its inaugural season with a midseason finale that promises a cliffhanger ending. ABC has released the full synopsis for "The Bridge", which features the return of J. August Richards as Mike Peterson from the "Pilot" and Ruth Negga as Raina from "Girl In the Flower Dress". Take a look at the full plot rundown for "The Bridge", airing Tuesday, December 10 at 8 PM ET on ABC.

"In a shocking cliffhanger episode, Coulson takes the war back to Centipede, and this time he brings in Mike Peterson for some super-soldier support. As they get closer to the truth, startling secrets are revealed and an unexpected twist threatens the team, on Marvel's Agents of S.H.I.E.L.D., Tuesday, December 10 (8:00-9:00 p.m., ET) on the ABC Television Network.

Marvel's Agents of S.H.I.E.L.D. stars Clark Gregg as Agent Phil Coulson, Ming-Na Wen as Agent Melinda May, Brett Dalton as Agent Grant Ward, Chloe Bennet as Skye, Iain De Caestecker as Agent Leo Fitz and Elizabeth Henstridge as Agent Jemma Simmons.

Guest starring are J. August Richards as Mike Peterson, Ajani Wrighster as Ace, Ruth Negga as Raina, Rick Malambri as Brian Hayward, Molly McCook as Laura Hayward, Cullen Douglas as Edison Po, Rico Devereaux as prison guard and Albert Marrero Jr. as trainer. "The Bridge" was written by Shalisha Francis and directed by Holly Dale."

Are you excited to see the return of super-strong Mike Peterson and the Girl in the Flower Dress? Chime in with your thoughts below.