A guide listing the titles and air dates for episodes of the TV series Marvel's Avengers. Seasons 1&2 are titled Avengers Assemble. Season 3. Episodenführer der TV-Serie – Staffel 1 · Staffel 2 · Staffel 3: Marvel's Avengers: Ultron Revolution · Staffel 4: Marvel's Avengers: Secret Wars. Avengers. Earth's Mightiest Heroes joined forces to take on threats that were too big for Marvel Heroes Assemble for PlayStation 4 and Xbox One This Spring.