The Justice League is on of the best animated serie about super heroes that you can see. The Justice League is the history of how this famous league is created. Each superheroe (Superman, Batman, Flash, Green Lantern, Martian Manhunter, Wonder Woman, Hawkgirl) is doing their job individually. This is when a huge menace threat the earth and the only way of stop it is getting together forming the Justice League.
At first, they don't know what to do and try to defend the earth by their own. But J'onn J'onzz (Martian Manhunter), who is lock up by the US army, try to connect psychically with Superman. When all of them were fighting against this menace, Superman runs and liberate to J'onn J'onzz. He made them understand that if all of them fight next to the other superheroes all their abilities are bigger and they'll have more chances to win.
From now on, they decide to create the League for ever, so their powers and knowledge can protect the earth in a better way.
Batman is the most solitary, and he preffer to work by his own, but, because he is very intelligent, he realize that that the Justice League is a great solution. Batman (Bruce Wayne) is like the main brain of the Justice League, and J'onn J'onzz is the second one. Superman (Clark Kent) is the muscle, and the head leader (with Batman). Flash (Wally West) is the funny and the friendly guy. Green Lantern (John Stewart) is the seriousness. The Hakwgirl (Shayera Hol) and Wonder Woman (Diana, an amazon warrior) are the beauty.
Then, after defeating the menace, a lot of new villans appear, and once again they must join their powers to stop them.
Whit the Justice League, the fights, adventures, fantasies, comedies, and the romance is always present.