We also got to see Lethan (Giant Fish ruler of Atlantis) keeping watch over his city

The only down side was Amber being beaten by her boyfriend, and the return of Angstrom Levy.
So all in all, a very fun filled story. And based on Kirkman's writing style (see Walking Dead where he gave everyone a nice peaceful few months before massacring them) and D's vague, yet ominous statement after reading issue #65, I am going to assume that the next storyline will rip Invincible's world in half - which I look eagerly look forward to.