"The Walking Dead" is a long-running series that has seen a multitude of significant plot twists and key character developments over its many seasons. Here are some must-watch episodes from the show that highlight pivotal events. Please note that this list won't be exhaustive but will touch on some of the most important episodes up to my knowledge cutoff date in early 2023: **Season 1:** 1. **Episode 1, "Days Gone Bye"** - The pilot episode is crucial for setting the stage, introducing the protagonist Rick Grimes, and establishing the post-apocalyptic world overrun by zombies. **Season 2:** 2. **Episode 7, "Pretty Much Dead Already"** - This episode reveals the fate of Sophia and solidifies a darker tone for the series, as well as propelling significant character arcs. **Season 3:** 3. **Episode 4, "Killer Within"** - Key deaths occur that have lasting impacts on the group, showcasing the harsh reality of the world they inhabit. 4. **Episode 12, "Clear"** - This episode gives depth to the character of Morgan Jones and reflects on Rick’s own mental state. **Season 4:** 5. **Episode 8, "Too Far Gone"** - The mid-season finale brings the Governor's storyline to a climax, with a significant battle that changes everything for the survivors. 6. **Episode 14, "The Grove"** - Centers on Carol, Tyreese, and the children, leading to one of the show's most heart-wrenching moments. **Season 5:** 7. **Episode 1, "No Sanctuary"** - Resolves the cliffhanger from the previous season's finale and sets a new course for the group. 8. **Episode 16, "Conquer"** - This finale includes critical confrontations and decisions that shape the future of Rick and the group. **Season 6:** 9. **Episode 9, "No Way Out"** - Addresses major threats to Alexandria and features intense character moments. 10. **Episode 16, "Last Day on Earth"** - Introduces the villain Negan and ends with a suspenseful cliffhanger that had the fandom buzzing. **Season 7:** 11. **Episode 1, "The Day Will Come When You Won't Be"** - Reveals the outcome of Negan’s deadly selection and marks a turning point for all the characters. **Season 8:** 12. **Episode 16, "Wrath"** - Concludes the "All Out War" arc and sets a new beginning for the series. **Season 9:** 13. **Episode 5, "What Comes After"** - A landmark episode in which the series undergoes a major directional shift. 14. **Episode 15, "The Calm Before"** - Features a shocking and brutal twist that serves as a significant plot development. **Season 10:** 15. **Episode 12, "Walk With Us"** - Contains pivotal moments in the Whisperer War. These episodes are key to understanding the larger narrative of "The Walking Dead" and how the characters evolve over time. However, watching the entire series provides the full context and depth of character development that individual episodes can't capture on their own. As the story progresses, newer seasons may add to the list of critical episodes with their own plot twists and character arcs.