Stranger Things: The Mysterious Case of The Henderson Family
It took five hours for people to realize Dustin Henderson was missing, and it took five years for him to come back.
Dustin goes missing days after the Battle of Starcourt and is presumed dead for five years. However five years later, Dustin Henderson returns not having aged a bit and unaware of the five year gap. Soon Steve and Hopper find themselves thrown back into the loop of evil Russians and the horror that is the Upside Down.