A standard television plot. An assignment is received in The Teaser. A planning session is held (Avengers Assemble). Then comes The Caper or The Con, using a Master of Disguise and an A-Team Montage. The resolution is as close to end of The Tag as possible.
At about the 40-minute mark, there is a Pseudo Crisis.
The trope takes its name from the series Mission: Impossible, whose Impossible Mission [...] [tvtropes.org]