It's literally a mix of tomb raider and rambo . If we talk about synopsis it's a little bit complex but you can grasp all over the plot at end . Nothing much to say , it met my all expectations spooky thriller bgm , detailed art style, top notch voice acting and other various anime components. It's can be more dark e.g they only showed some portions of back story like how much was involved in human experiments even we can make a seperate movie , a lot of scope is there . Spriggan also has a netflix version, so moving towards it with same expectations.Hope it won't disappoint me .