Avengers v1 #154

This is just one of those all time classic scenes. Attuma and his minions attack and defeat the Avengers.

In one scene, an injured Wanda attempts to reason with Attuma, but he gasses her to sleep instead, using some built in mechanism in his suit. There are great panels with Wanda being carried unconscious.

Attuma later uses his gas gun to put The Wasp to sleep. He does this by grabbing the tiny Wasp in his hand, and just spraying the gas onto her. She is later put into a jar.

I actually took a look in the following issue, #155, and there isn't really any good follow up. There are some low resolution panels with the captured Avengers shackled to a table.