Heroes Spoiler

Season 1:

1. Genesis
2. Don't Look Back
3. One Giant Leap
4. Collision
5. Hiros
6. Better Halves
7. Nothing to Hide
8. Seven Minutes to Midnight
9. Homecoming
10. Six Months Ago
11. Fallout
12. Godsend
13. The Fix
14. Distractions
15. Run!
16. Unexpected
17. Company Man
18. Parasite
19. .07%
20. Five Years Gone
21. The Hard Part
22. Landslide
23. How to Stop an Exploding Man

Season 2:

1. Four Months Later
2. Lizards
3. Kindred
4. The Kindness of Strangers 
5. Fight or Flight
6. The Line
7. Out of Time
8. Four Months Ago
9. Cautionary Tales
10. Truth & Consequences
11. Powerless

Season 3:

1. The Second Coming
2. The Butterfly Effect
3. One of Us, One of Them
4. I Am Become Death
5. Angels and Monsters
6. Dying of the Light
7. Eris Quod Sum
8. Villains
9. It's Coming
10. The Eclipse: Part 1
11. The Eclipse: Part 2
12. Our Father
13. Dual
14. A Clear and Present Danger
15. Trust and Blood
16. Building 26
17. Cold Wars
18. Exposed
19. Shades of Gray
20. Cold Snap
21. Into Asylum
22. Turn and Face the Strange
23. 1961
24. I Am Sylar
25. An Invisible Thread

Season 4:

1. Orientation
2. Jump, Push, Fall
3. Ink
4. Acceptance
5. Hysterical Blindness
6. Tabula Rasa
7. Strange Attractors
8. Once Upon A Time In Texas
9. ShadowBoxing
10. Brother's Keeper
11. Thanksgiving
12. The Fifth Stage
13. Upon This Rock
14. Let it Bleed
15. Close to You
16. Pass/Fail
17. The Art of Deception
18. The Wall
19. Brave New World