“Special Forces: World’s Toughest Test” is back with Season 4, airing on Fox on Thursdays at 9 p.m. ET.

When is “Special Forces” on?

  • Season 4 premieres on Thursday, September 25, 2025 , at 9/8c on Fox.
  • New episodes then continue weekly on Thursday nights at the same time.
  • The premiere is a one‑hour episode leading into the regular season run.

If you use a live TV or streaming service that carries Fox (for example, Hulu

  • Live TV, YouTube TV, Fubo, or Sling), you can watch it live at 9 p.m. ET/PT or via their on‑demand sections after it airs.

So, if you’re setting a reminder: mark Thursday nights at 9 p.m. on Fox for “Special Forces: World’s Toughest Test” Season 4.

Information gathered from public forums or data available on the internet and portrayed here.