Guardians of the Galaxy Vol. 3 was the emotional final chapter of the James Gunn Marvel Cinematic Universe (MCU) trilogy, but the ending hides an even darker resolution. The Guardians of the Galaxy sub-franchise in the MCU was by far one of the best and most well laid out stories from the entire series. From the moment the misfit heroes joined together, to the heartbreaking moments that saw them go their own ways, it was an emotional roller coaster.