The updated synopsis for next year’s Avengers: Infinity War teases that the threat posed by Thanos extends well beyond Earth and its Mightiest Heroes.
The post-credit tag in Joss Whedon’s first Avengers movie was what first introduced audiences to the purple alien supervillain known as Thanos.
However, it was not really until 2012’s Avengers that the path was cleared out, as to what exactly Marvel Studios head honcho Kevin Feige’s long game was going to be.
It is also important to note that the release of Avengers: Infinity War marks that 10th year of the MCU, after it was kickstarted with the first Iron Man in 2008.