Changes

When [[Dean]] finds the obituary of a wrestler John was a fan of, he and Sam reminisce that watching wrestling was one of the few moments they could remember seeing him actually happy. Dean considered their time at wrestling shows as the nicest thing John ever did for them.

===[[12.15 Somewhere Between Heaven and Hell]]===

As they are returning from cases involving [[ghouls]], [[wraiths]], and [[sirens]], Dean comments on how John used to love the weapon he was carrying, a bat wrapped with barbed wire which was covered in raw pieces of the [[monsters]] they were hunting, as is Dean.

While he looks through the lore books, John also talks with Sam about their fight the night Sam left for Stanford. Sam tells John that while he thinks about him a lot, he never thinks about their fights. Sam felt bad about how he never got to say goodbye before finding John on the floor in the hospital. However, Sam acknowledges that John did the best he could for them.

Later, they discover that they tampered with time by pulling John from the past. The consequences include Sam never getting back into the hunting life, Dean being wanted for $100,000 on multiple charges, Mary never being brought back to life by [[Amara]], presumably Jack never being born, and Castiel never meeting the Winchesters. They realize that they need to send John back to 2003 to correct the past. Sam, Dean, and Mary are hesitant, but John accepts that he has to go back. John also tells Dean that he never meant for his sons to have to live the hunter life as it was supposed to end between Yellow Eyes and him. He wanted Dean to have a normal life and have a family of his own, but Dean acknowledges that he already has a family. After sharing one family meal, they gather around for one last tearful goodbye. As John holds Mary's hand, Sam smashes the Baozhu, sending John back to 2003.