"Smallville" comes back to Clark's high school years. In an attempt to cheer up Clark, Lois convinces him to attend their five-year high school reunion. A visit back to the home of the Crows has Clark remembering old times with Lana and Chloe, while Lois is furious that no one remembers her five days as a student.

Brainiac 5.0 uses his Legion ring to visit from the future and takes Clark through his past, present and future. He shows Clark what really happened the night Jonathan died, Oliver's current pain and Clark's future at the Daily Planet with Lois and his role as Earth's favorite red and blue superhero.

"Homecoming" airs October 15 on The CW. The episode after this would be the 200th.

Executive producers Kelly Souders and Brian Peterson recently said that they have finished mapping out the series finale. "As of Tuesday (October 5), we pretty significantly know the rest of the series," Peterson revealed. Souders chimed in, "That was pretty daunting. We were all sitting in the writers' room, and we looked up at the board, and we had it all mapped out. Everything's now mapped out. We thought, 'Wow. That's it'."