The first season aired between July 12 and September 27, 2013, and the second season, titled Gatchaman Crowds Insight, started with a prologue episode streamed on Hulu on June 20 before first airing on July 4 and finishing on September 26, 2015.

After the introduction of their newest member, the energetic and cheerful Hajime Ichinose, the Gatchaman is tasked with fighting against a mysterious alien life form known as MESS and deal with Berg Katze, an enigmatic alien creature who, having destroyed several planets, has turned his attention to Earth.

CROWDS, the system that turns the mentality of humans into physical form that Berg Katze gave to Rui Ninomiya after extracting his NOTE, has spread among the public.

However, A mysterious organization known as VAPE attacks Sugayama's vehicle, marking the start of a series of new conflicts.

[2][4] A second season, titled Gatchaman Crowds insight, started airing on July 6, 2015.