Forget Me Not
S2:E4
2007
IMDb
When the 7 heroes are on a trip to the Elysian Fields to meet their ancestors and learn more about them, Cronus devises a plan to swipe their memories. Problem for him is that the plan backfires when he and the heroes but Neil lose their memories. Now it's up to Neil to get the poppies to heal his friends before he loses them forever!