->'''Chief''': Max, you realize you'll be facing every kind of danger imaginable.
->'''Max''': And. Loving it.
-->-- ''Series/GetSmart''

A standard television plot. An assignment is received in TheTeaser. A planning session is held (AvengersAssemble). Then comes TheCaper or TheCon, using a MasterOfDisguise and an ATeamMontage. The resolution is as close to end of TheTag as possible.

At about the 40-minute mark, there is a PseudoCrisis.

The trope takes its name from the series ''MissionImpossible'', whose Impossible Mission Force did one of these every week. As such, note that not every impossible mission is an ImpossibleMission.

For missions that actually are impossible, see ImpossibleTask.

Not to be confused with the video game ''{{VideoGame/ImpossibleMission}}''. Also see SuicideMission.

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!!Examples:
* Despite its few episodes, ''{{Firefly}}'' did two of these, in "Ariel" and in "Trash".
* Mercilessly parodied in the ''WhoseLineIsItAnyway'' game "Improbable Mission," which had agents given missions involving high stakes but ordinary tasks, such as doing laundry or mowing the lawn.
* The task of "Inception" in the [[{{Inception}} film of the same name]].
* Oddly enough, both Series/MissionImpossible and Film/MissionImpossible featured some of these...
* In {{Borderlands2}}, the task of entering the bunker where Handsome Jack is [[spoiler: holding Angel prisoner]] is framed this way, with the next several story missions involving rounding up the tools and talent needed to break in.
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