If this show is missing anything it isn't much. the story progressions and character motivations are spot on with each character given a moment to shine in the series. This episode brings another chapter in the Kree/Skrull War storyline. The producers have taken the classic storyline and are slowly introducing the key elements, thankfully without rushing the whole concept or dumbing it down either.
It is also exciting to see the roster expanding further. definitely a 'must see'. It is a completely different type of show than Young Justice, which is also superb, that show will take some beating. As for DC having Marvel's number I would agree more if Green Lantern was produced in the Young Justice animation format. they have also insisted on this for the new batman animated series also a mistake