My Killer Soulmate (Tronnor AU)

How would you feel if you had a clock on your wrist that told you to the exact second when you are going to meet your soul mate? The love of your life. The one that you are suppose to spend the rest of your life with. For Troye, a hit man working for the notorious Dan and Phil, and Connor, a highly experienced photographer also working for the notorious Dan and Phil, this a reality. What will happen when Troye is assigned to kill the person that he is destined to spend the rest of his life with? What will happen when they realize that they are meant to be? What will happen when the clock hits 00:00:00:00?