A young twenty-something inventor creates a time machine. The only problem is that Y/C has a rival who will do anything to be the first to invent time travel. Y/C's rival even goes as far as to use Y/C's time machine to go back in time to make it so Y/C was never born. Luckily Y/C follows them to the past. Will they come to an understanding? Will Y/C stop their rival's attempts? Will Y/C disappear from existence?

Another time travel one, but can you blame me? It's eighty-eight. Anyone understand the reference?