Amora the Enchantress seduces an Asgardian Warrior,Skurge,who was nicknamed the Executioner into freeing Loki.
At Vanaheim,Thor,Sif,& the Warriors Three fought off the invaders. He tells the Warriors to evacuate the inhabitants to safety. Amora learned about Thor thinking about Jane Foster,so she sent the Executioner to abduct her.
As Amora's Army attacks Asgard,Thor confronts her & Loki,who held Jane captive. Amora reveals that she heard all about him,saying that She will release Jane if Thor agrees to be her King. Sif & the Warriors Three frees Jane & escape with Thor,but not before she had Odin in Prison.
On Earth,Thor needs to figure a way to stop Loki & Amora. The Warriors Three secretly sneak into Prison to free Odin while Sif fights with the Executioner. Thor confronts Loki & Amora. The Executioner knocked out Sif & battles with Thor,but gets killed by Amora. Sif got up & defeats Amora as Thor realizes that Loki has escaped. As They return to earth,Jane tells Thor about the News of him fighting the invaders in New York.
Mid-Credits:
Loki teleports to Svartalfheim as he meets up with Malekith the Accursed.
Post-Credits:
General is approached by the Leader,who offers him the way to get back at Bruce.