Directed by Roger Michell, the official opening at the National's Cottesloe will be April 5. The cast includes Pippa Haywood, Tom Hollander, Julian Rhind-Tutt and Jason Watkins.
Landscape features designs by William Dudley, lighting by Rick Fisher and sound by Rich Walsh.
"To his family's horror," read Landscape press notes, "Ned reveals he's the brains behind a new military technology so sophisticated, so extraordinary, it will revolutionize the nature of warfare. It's only when the Ministry of Defense demands intellectual ownership that Ned begins to question himself, resisting the might of the weapons industry with frightening consequences."
Joe Penhall also wrote Blue/Orange, winner of the Olivier, Evening Standard and Critics' Circle awards for Best New Play. His other plays include Dumb Show, Pale Horse and Some Voices (Royal Court).
For more information visit www.nt-online.org.