Season 1 Episode Guide

Size Matters

Season 1, Episode 4

August 26, 2013

Endless Forms Most Beautiful

Season 1, Episode 3

August 19, 2013

What Is Life?

Season 1, Episode 1

July 10, 2013

Cast & Details See all »

  • Premiered: July 10, 2013
  • Rating: TV-PG
  • Premise: Documentary series examining the science of life on Earth. (more)

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Jared Padalecki and Jensen Ackles Reunite With Supernatural Co-Stars on Kings of Con

Supernatural's biggest stars are apparently too famous to remember Richard Speight Jr and Rob Benedict.