It will be preceded by Fimbulwinter, the winter of winters. Three such winters will follow each other with no summers in between. Conflicts and feuds will break out, and all morality will disappear. This is the beginning of the end.
After the Fimbulwinter, the enemies of Asgard ['?sga:d] will unite and attack. Gods and Jotun (giants) will battle to mutual annihilation.
Odin the All-Father will die in combat with Fenrir, a gigantic animal whose two sons will eat the moon and the sun.
Thor will kill Jormungandr, the serpent so large it encircles Midgard, but dies from its poison.
Heimdall and Loki will kill each other.
Freyr — the powerful god of harvest — will fall to Surtr, the flaming, giant lord of Muspelheim, world of fire.
Surtr will then fling fire in every direction. The nine worlds will burn, and friends and foes alike will perish. The earth will sink into the sea.
Thor was the son of Odin and Fyorgyn, the earth goddess. He is a hammer-wielding god associated with thunder, lightning, storms and strength.
He had a red beard and eyes, he was huge in size, he had an insatiable appetite and not much wit. Thor was the strongest of all gods and men.
Generally good-natured, Thor had a hot temper, and his anger was dreadful to behold.
He was a fierce enemy of the frost giants. When people heard thunder and saw lightning in the sky, they knew that Thor was fighting these evil giants.
The thunder god's chief weapon was his mighty hammer Mjollnir, which the dwarfs had forged for him.
When he threw Mjollnir, it returned magically to his hand like a boomerang.
When Thor needs to hover in mid-air, he twirls the hammer around like the rotor of a helicopter, which keeps him suspended above the ground.
Loki is a shape shifter and in separate incidents he appears in the form of a salmon, a mare, and a fly.
Loki's relation with the gods varies by source; Loki sometimes assists the gods and sometimes behaves in a malicious manner towards them.
"Hiddleston steals the show here, making wickedness and treachery look a heck of a lot more fun than virtue." — Washington Post
"The one bright light in Asgard is its darkest soul, Thor's brother Loki (Tom Hiddleston), who got all the brains in the Thor family but none of the virtue. He breezes along with an air of uneasy self-satisfaction, smug but not completely sure of himself, and thus more interesting." — San Francisco Chronicle
She is described as having been appointed by the god Odin as ruler of a realm located in Niflheim. Her appearance is described as half blue and half flesh-coloured and further as having a gloomy, downcast appearance.
Odin is associated with healing, death, royalty, the gallows, knowledge, battle, sorcery, poetry and frenzy, and is the husband of the goddess Frigg.
He is often accompanied by his animal companions — the wolves Geri and Freki and the ravens Huginn and Muninn, who bring him information from all over Midgard — and rides the flying, eight-legged steed Sleipnir across the sky and into the underworld.