Lost Tapes depicts traumatic scenarios where people are attacked and/or killed by mysterious, dangerous, deadly, savage, and ferocious paranormal wild cryptids. The series is shot in a mockumentary style. Most episodes begin with a quick introduction of facts, which include interviews with experts explaining scientific theories or facts and folklore behind the episode's titular creature. In the second season, some episodes began with footage of a person being attacked and often killed by the episode's creature, an introduction meant to set up the events of each episode. In the third season, every episode had such an introduction, though the events of every episode in all three seasons are accompanied by videos of scientists, cryptozoologists, and folklorists giving their very thoughts and opinions of the creatures, which are called Lost Tapes: Revelations.