Биография отсутствует.
2017NOVA: Secrets of the Sky TombsФильмProducer · Director · Writer
2016Himalayan MegaquakeФильмDirector
2014Killer LandslidesФильмDirector
2012Cave People of the HimalayaФильмDirector
2009Lost Cave Temples of the HimalayaФильмв роли Narrator · Writer · Director
2003National Geographic: Surviving EverestФильмDirector · Producer · Writer
2003NOVA-Lost Treasures of TibetФильмWriter · Director
2000Lost On EverestФильмDirector · Writer
2000Lost on Everest: The Search for Mallory and IrvineФильмProducer · Director
1974Новая звездаСериалWriter · Director · Producer · эпизодов: 7