A man wakes up missing his memories. Directed by a mysterious voice from a device in his ear, he sets off on a hostage rescue mission rife with danger.

It’s the year 2050 and time travel exists thanks to Alice, the mechanism through which the intriguing practice is made possible. But a rumor based on a prophecy beings to spread about time travel coming to an end. When You Min Hyuk and Yoon Tae Yi are sent to the year 1992 to find out about the prophecy, Tae Yi realizes she’s pregnant and decides to stay in the past by herself. She changes her name to Park Sun Young and eventually gives birth to a beautiful son named Park Jin Gyeom, whose mental health suffers due to radiation exposure. Fast forward to the year 2010, and Sun Young is murdered by someone. 10 years after her death, her son Jin Gyeom is on a mission to find who is responsible for his mother’s death. But while searching, he runs into Yoon Tae Yi, a physics professor who looks exactly like this mother. What will become of these individuals caught tragically between time and space?

Kim Tae Hyun is a promising young surgeon, but his finances take a dive when his sister's health condition requires costly dialysis treatments. When Tae Hyun subsequently falls into a vicious cycle of debt, he assumes the alias of "Yong Pal" and begins making house calls for criminals who are willing to pay top dollar. Complicating things further, Tae Hyun gets involved with Han Yeo Jin, a comatose patient at the hospital.

As a child, Park Shi On was sent to a specialized care center, where he discovered genius capacities for his autism. Coupled with an exceptional memory and keen spatial skills, the young savant eventually entered pediatric residency, where he developed into a promising surgeon. However, his mental and emotional development seems to have stopped at 10-years-old, which makes for incredible conflicts in and out of the O.R., especially with the hotheaded surgeon Kim Do Han. Despite warm hearted and fair colleagues like Cha Yoon Seo and Han Jin Wook , it’s a fierce and competitive adult world. One cannot simply tell Shi On to “grow up.”

You better not click if you want to survive.