Shows involving time travel are always tricky to pull off correctly. From plot holes and convoluted lore to stories rife for contrivances and confusion, The King: Eternal Monarch begins with a fair amount of confusion before righting itself and becoming something wholly engrossing and highly enjoyable. Between parallel worlds and a love story anchoring everything together, this hugely popular Korean drama is helped by a returning K-Drama Royalty Lee Min-Ho who fronts this sci-fi series and helps add a lot of charisma.