: "Asylum" (Part 1 of the S4 finale). You can find technical and plot discussions on Wikipedia .
: "Career Day." A lighter episode involving Claire returning to the workforce, detailed on Wikipedia . [S4E21] The Last Word
Entertainment Weekly provides a recap of "Mr. Kaplan: Conclusion," which centers on the "truth" Red is hiding. Other Notable S4E21 Episodes : "Asylum" (Part 1 of the S4 finale)
The search results for vary across different television series, and while none are titled "The Last Word," several episodes in this slot deal with themes of ultimate truths or finality. [S4E21] The Last Word
Depending on which show you are referring to, here are the most relevant "papers" or guides: