What on Earth?

QUEST

Monday 21 January 2019  23:00 - 00:00 (60 mins)
A giant letter Z is carved into a Mexican hillside, evoking the mark of a legendary outlaw. Plus, a strange sighting in Germany points to secrets from the Cold War. S3/Ep9

What on Earth? (QUEST) Monday 21 January 2019 23:00 - 00:00