Bishop73

Answer: Back to the future 1 Yes he was sent back to 1955 thereby he accidently interacted with his parents he didn't know they were from the beginning and when he did it was too late he already interacted with them thereby altering 1985 thankfully with the help of his friend Emmett Brown he was able to fix the timeline and go back to the future Back to the future 2 Emmett Brown went 30 years into the future thereby discovering Marty's son altering the future so Emmet Brown had go back to 1985 to take Marty back to the future to repair the future which they did unfortunately Marty obtained Greys Sport Almanac Biff from the future obtained it& the DeLorean sending himself back to Nov 5th 1955 handing to his younger self what he obtained from the future which created 1985a the reason why 2015 wasn't altered by old Biff future because Emmet Brown and Marty McFly repaired that timeline n the timeline old Biff collapsed in pain and slowing faded away in 1985a both Emmett and Marty discover both Emmett and Marty decide go back to Nov 5th 1955 to repair that timeline meaning that timeline never really existed meaning Biff from the future is alive and well Back to the future 3 On Nov 12 1955 the lightning struck the clock tower and the DeLorean sending Emmett Brown into existence Emmett wrote a letter what had happened 6 days before he was shot in the back by Biff's great grandfather realising this Marty raced back to 1955 to get help so he could go into the past so he could rescue his friend and get him get him back to the future this brought timeline 8 into existence that's where Emmett fell in love with Clara later the marry and to have a family unfortunately when Marty goes into the past so he could rescue his friend and get him get him back to the future Back to the future 4 Marty learns he' not in 1885A he's in 1885B similar to timeline 4 with Emmet Brown's help Marty goes back to January 1st 1885 10 minutes before Emmet brown arrives Marty explains 6 days after you sent me that letter which Marty shows who get shot in the back by Buford Tannen over 80 dollars both Emmet and Marty head back to 1985 Marty wakes up believing he's now back in 1985 only he discovers he's not n 1985 he's in 1955B similar to timeline 4 Marty writes a letter to his friend 30 years into the future Emmett arrives and collects Marty and arrives back to Nov 12 1955 at 6am unfortunately the clock tower hasn't changed its still at 10:04pm Emmett then remembers 4 hours ago he did sent himself back into the past his did damage the clock tower and it's because of that the clock still reeds 10:04pm.