00:00People never realize just how terrifying Groot's ultimate form truly is.
00:03He may look harmless, but once he gets really angry, you'll see what real terror looks like.
00:08As we all know, Groot was exiled from his homeworld,
00:10but no one knew back then that he would one day become the Mighty King Groot.
00:14The Groot we first see in Guardians of the Galaxy was already an adult,
00:17yet he still looked very thin.
00:18After being cast out by his people, Groot survived on his own for many years.
00:22He suffered from long-term malnutrition, which prevented his body from fully developing.
00:26The second generation Groot, however, was raised by the Guardians of the Galaxy.
00:29Because of this, he grew up much stronger than the original Groot.
00:32Even during his sapling stage, despite being very small,
00:35he possessed incredible fighting abilities whenever he became angry.
00:38As a teenager, he became extremely rebellious and spent most of his time playing video games,
00:42but without him, Thor would never have obtained Stormbreaker in Avengers Infinity War.
00:47As he grew into a young adult, Groot became incredibly muscular.
00:50In the post-credits scene of Guardians of the Galaxy Vol. 3,
00:53when the adult Groot appeared again, he had almost reached the appearance of King Groot.