In 1999, Voldemort has been defeated. The wizarding world is drastically being changed by the efforts of Harry Potter, Hermione Granger, Ron Weasley, and others. The last of the Death Eaters are being rounded up and set off to jail so that there will be no more trouble coming from Voldemort's supporters.
In 1979, the Order of the Phoenix has recently started. James Potter, Remus Lupin, Sirius Black, and Peter Pettigrew are all fighting against Voldemort who is rising steadily to power. Regulus Black has not yet died although some members of the Order have already fallen. Peter Pettigrew has not yet turned into a spy for Voldemort.
In 1959, six people have already joined a group called the Knights of Walpurgis. They will eventually become the Death Eaters under the leadership of Voldemort.
In 2006, certain people from these times suddenly appear. They do not know how or why they arrived, and what's even more strange, no one seems to know who they are. In the world they are now in, there never was a Harry Potter or an Albus Dumbledore or a Lord Voldemort. Even if they go to their families, they have no recollection of them. Parents do not remember giving birth to their children. Siblings do not remember their brother or sister. What's more, a few people who have died also appear there, such as Cedric Diggory.
In the middle of this, three people not from the three years show up. Two are Teddy Lupin and Victoire Weasley, ages 8 and 5. They have complete amnesia and remember nothing about themselves, not even their own names. The other person shows up from 1946: Tom Riddle, 19 years old and ready to go on his journey that will lead him to become the fearful being known as Lord Voldemort.
These people have nothing but themselves when they are taken to this time. Death Eaters from different times gather to attack an unsuspecting world while the Order of the Phoenix bands together to protect it. They keep as close an eye as they can on Tom Riddle, hoping to prevent any atrocities he might commit... all the while trying to figure out how they got there and how to make it back home.
Taken Characters: Remus Lupin, Sirius Black, Teddy Lupin, Victoire Weasley, Lily Evans, Alice Longbottom, Colin Creevey, Susan Bones
Most Wanted: James Potter, Nymphadora Tonks, Harry Potter, Hermione Granger, Ron Weasley, Neville Longbottom, Luna Lovegood, Ginny Weasley, Draco Malfoy, Frank Longbottom, Peter Pettigrew, Regulus Black, Bellatrix Lestrange, Rabastan Lestrange, Rodolphus Lestrange, Lucius Malfoy, Antonin Dolohov, Tom Riddle