"I pitched a storyline, and as far as I know it's been picked up. It's for the third and final episode I'm contracted to do. But I can't give any spoilers"

In this quote, Corin Nemec is discussing his participation in a project where he pitched a story that has been accepted. He mentions that this story will be used in the 3rd and final episode that he is contracted to work on. However, he likewise specifies that he is not able to expose any details or spoilers about the story. This might imply that the project is still in development and he is not enabled to divulge any info up until it is officially released. It might likewise suggest that the story is a significant plot point and exposing it would destroy the surprise for audiences. Overall, Nemec's statement hints at his enjoyment and anticipation for the task, while also appreciating the need for secrecy.