Halo Alpha
Halo Alpha

Unbound is the second episode of the first season of Halo. It aired on March 31, 2022, only on Paramount+.


John takes Kwan to an old friend and learns more about the mystery object, which the Covenant and Makee are determined to steal. With the alien threat growing, Dr. Halsey has a plan to deal with John's unpredictable behavior.


22-years ago, a young John-117 sneaks out of the UNSC Spartan Training Center to meet with Soren-066. The teens planned to defect from the UNSC, as Soren has realized the programming being done by Dr. Halsey. He wants John to come with him, but John can't let him leave as he has protocols to obey. He threatens to shoot Soren if he leaves, but Soren appeals to what little emotion John still has. John fakes that his weapon is defective and gives Soren a five minute head start before he awakens the entire camp.



Also Starring[]

Guest Starring[]

  • Ryan McParland as Adun


  • Logan Sherer as Teenage John
  • Jude Cudjoe as Teenage Soren
  • Anna Trokán as Trokan
  • Gábor Nagypál as Squirrel
  • Tylan Bailey as Kessler
  • Miranda Wilson as Penma
  • Francisco Labbe as Davia Agnoli
  • Iván Fenyö as Bota
  • Dávid Csányi as Colonel Stacker
  • Iringó Réti as Vendor
  • Fernanda Rachi Silva as Cage Person 1
  • Hisham Omer Abdelrahman Aburas as Caged Person 2
  • Owen Good as Robin
  • Sarah Ridgeway as John's Mother
  • Duncan Pow as John's Father


  • Reach
    • UNSC Spartan Training Center (22 years ago)
    • UNSC Fleetcom
      • Epsilon Eridani System
  • The Rubble
    • Landing zone
    • Soren's home
    • Refuge quarters
      • Reth's cell
  • UNSC Frigate - Stalwart Dawn / Outbound From Reach (Ship)
  • High Charity / Covenant Command
    • Counsel quarters
  • Madrigal
    • Madrigal City

Halo the Series: Declassified[]

Welcome back to Halo the Series: Declassified! In the latest episode of the official Halo aftershow, host Sydnee Goodman takes viewers behind the scenes of Episode 2 ("Unbound"). To start things off, enjoy an in-depth interview with actor Bokeem Woodbine, who plays Soren, a former friend to Master Chief, now a Spartan gone AWOL. Plus, take a VIP trip to the series' red carpet premiere and hear from the excited fans as they dive into the first two episodes. Then, the cast and crew behind Halo the Series reveals what the franchise means to them. Finally, Director Otto Bathurst gives us an inside look at the creation of a big battle scene on the planet Madrigal.


  • The code on Rubble is 343, which is an Easter Egg for multiple 343 references in the video game series.


For a complete episode gallery, please see Unbound/Gallery.