The three-part thriller - from new writer Dominic Mitchell - will debut on Sunday, March 17 at 10pm.
The new animated clip takes the form of a public information film, providing the viewer with tips on how to survive a zombie uprising and what to do in the event of being bitten.
In The Flesh stars Luke Newberry as Kieren Walker, an 18-year-old who is revived from his 'partially deceased' zombie state but struggles to reintegrate into society.
Ricky Tomlinson (Cracker, The Royle Family), Kenneth Cranham (Layer Cake) and Alex Arnold (Skins) also star.
> BBC announces new series Atlantis to replace Merlin
> Being Human: Is it the right time for the show to end?
Watch a trailer for In The Flesh below: