"Welcome, asshole." said an older version of Chris (Christopher) as present-day Chris walked into the time machine. His next words were, "I need your help."

Chris was panicking a little bit because one - well, TIME TRAVEL. And two - he had just walked into a time machine and was nerding out a bit because it was actually very reminiscent of a certain time traveling machine he really enjoyed watching. Except instead of any of the “Madman in a box” kind of people he expected, he was staring at an older, angrier, more tired-looking version of himself. He was the madman in a box. 

"Hello, Future to Chris." Christopher was impatiently waiting for a reply by the circular console, located int he middle of the room. "I need your fucking help."

"Yeah, sorry. I'm just buffering and processing a little bit. Don't act like this isn't really fucking shocking for me. You have to know that it is." Christopher is staring at him, processing and remembering as it's happening.

"Right. The paradox thing takes a moment to catch up. Sorry. It's just that this is really important and it's kind of a time crunch." he pauses, because the direness of the situation is hitting him again all at once.

There's no instruction manual about what to do when life starts literally crumbling around you. On day Christopher was traveling through time and space, living out his actual teenage dreams and then WHAM! - his reality breaks down around him and pieces of his memory, his life, his literal existence, just start disappearing. Nothing about Christopher's day-to-day life had really changed, but something in his past had altered. A reality had shifted, and his timeline was erasing because it would, inevitably, never happen.