Usually I like this kind of stuff but the plotholes und stupid things makes its read bad to watch it anymore

when the world is going to end why you tell #5 "I must go to sleep as tomorrow I have teaching class"

all I was thinking was WTF is that stupid!

this was just an example how stupid this show was so I cant give more then 3 stars.

PS: Problem with all timetravel stories is that nothing makes sense or is important as whatever happened why not somebody is jumping back to fix it before it went wrong. Based on this you dont real care anymore who gets killed or not