coup de main - noun
kü-də-ˈmaⁿ
Definition of coup de main : an attack that achieves complete surprise.

Watch: 'WandaVision' new teaser.

Marvel have shared a new teaser video for 'WandaVision' ahead of its debut next week on Disney+, with the show to launch the Marvel Cinematic Universe's planned 'Phase 4'.

Watch the new teaser below...