[Spoilers] Actually this is very bad, but somehow they manage to let you skip everytime to the next episode. The overall idea is fine. I like time-travel films/series and this one is different enough than the rest. The acting varies between decent and very bad. The cheesy typical American pro-family vibe ruins it and is even worse than Lost in Space (2018). Nice are the prehistoric (late-Pleistocene) animals, which are quite correct. Although I doubt if those spiders were really that big (large Arthropods are usually found in warmer/tropical areas). [/Spoilers]