Loki is returning to Marvel in Avengers ... Sif infiltrates Asgard to rescue the goddess Idunn. Along the way, they recruit the help of the dwarves and the Warriors Three, with a final battle ...

Thor and Sif are able to gather troops for their cause. While Thor wages war on Jotenheim, Sif sneaks into Asgard and frees Idunn before the group hides away in Niffleheim. We get cameos from the ...