TV Undiscovered Worlds with Steve Backshall - Season 1 Episode 4 : Mexico Part 2 Undiscovered Worlds with Steve Backshall - Season 1 Episode 4 : Mexico Part 2 9/10 by 1 users Steve Backshall is in Yucatan, Mexico, on the trail of the ancient Maya. His team of explorers uncover macabre and sinister secrets deep underground. Details Casts Posters Images Title Undiscovered Worlds with Steve Backshall - Season 1 Episode 4 : Mexico Part 2 Alternative Titles First Air Date 2019-04-21 Last Air Date 2019-05-12 Number of Episodes 4 Number of Seasons 2 Genres Documentary, Networks , Casts Plot Keywords , Episodes List Undiscovered Worlds with Steve Backshall Season 1 :Episode 1 Arctic Part 1 Arctic Part 1 2019-04-21 Steve Backshall ventures into uncharted territory. Undiscovered Worlds with Steve Backshall Season 1 :Episode 2 Arctic Part 2 Arctic Part 2 2019-04-28 Steve Backshall ventures into uncharted territory. Undiscovered Worlds with Steve Backshall Season 1 :Episode 3 Mexico Part 1 Mexico Part 1 2019-05-05 Steve Backshall ventures into uncharted territory. Undiscovered Worlds with Steve Backshall Season 1 :Episode 4 Mexico Part 2 Mexico Part 2 2019-05-12 Steve Backshall ventures into uncharted territory.