1. Episode 1
Empowered by the God of Light, Taesan and the angels fight with Marok to protect the world as Ogwi and Samin plot to plunge the world into darkness.
Twelve — Season 1
12 animals who received a call from heaven and came down to the human world to save it. They are each given their own powers to protect humans and are reborn as 12 angels. Led by the tiger angel Tae San, the leader of the angels, the 12 angels fight a bloody battle against Asura, the king of demons who was hated by God and banished, and the demons to protect the human world.
2. Episode 2
While Taesan is haunted by his past guilt, Samin seeks Ogwi's help to steal Mirr's power. An odd light signals the evil's return.
3. Episode 3
After evil spirits strike, Tae-san worries for the injured angels. O-gwi, with the soul stone, vows revenge as Ma-rok secretly hunts Sa-min.
4. Episode 4
Marok warns Taesan of Ogwi and Samin’s return. As they sense the evil at their gathering, Geumsoon, the only human Taesan cares for, becomes a target.
5. Episode 5
Taesan protects the angels and Geumsoon, while Samin kidnaps Mirr. Ogwi takes the power of Mirr and the soul stone. Marok unleashes his wand's power.
6. Episode 6
Ogwi battles Samin for the soul stone and escapes with Mirr. Taesan opens the Hellmouth, restoring the angels' powers but unleashing evil worldwide
7. Episode 7
Ogwi prayed to God, but a different entity answers him. To stop Samin from stealing Mirr's dragon soul, Taesan storms an underground temple in fury.
8. Episode 8
As angels clash with Samin's fallen angels, Taesan falls defending Mirr, only to rise again to seal away the evil and save the angels.