likely refers to the physical media release (Blu-ray or DVD) or a full guide of the season's content. The complete first season includes 22 episodes across 5 discs, following Agent Phil Coulson and his team as they investigate extra-normal threats. Physical Media & Purchasing Options
You can also purchase the complete season on DVD or Blu-ray. agents of s.h.i.e.l.d. season 1 complete
The season's climax, which features a dramatic showdown between Coulson's team and HYDRA, sets the stage for future seasons and establishes the show as a key player in the MCU. likely refers to the physical media release (Blu-ray