Thor (1962 1st Series Previously Journey Into Mystery) #418

Ulik teaches the Wrecker about his powers, and he learns some new abilities; They attack Hercules, and his fears from the beating he once received from them resurfaces; Thor shows up and realizes that for his friend to ever regain his confidence, Thor must take a dive. Seeing his friend take a beating brings the old Hercules back, and the two easily send the Wrecking Crew running.

Tales of Asgard back-up.  Sif has agreed to marry Leir, on the condition that he takes her to Midgard to warn Thor of the barrier surrounding Asgard; Vizier goes to inform Odin, but its really someone else impersonating Odin, someone who imprisons Vizier in a crystal.