it seems to be a time travel si-fi TV series, but the main topic is disclosed about love can truly decide our destiny, I had been watched many time travel TVs and films, however, this TV series is beyond more and more.
it has discussed our society's issues, particularly family-of-origin issues, and love. if you like heroes saving the world, it does; if you seek si-fi time travel, and it does too; if you seek violent struggles between ambition and humanity, and again it does too.
if you wanna find a film that can beat this TV series, then the film "Inception" can be a suitable rival one. all in all, I love this sort of si-fi TV series, this TV series is profoundly meaningful beyond it, strongly recommend watching it, I wish Netflix could produce season 2 or might be a similar topic TV series. well done!