Dexter 4x10 Lost Boys Season 4 Season 0 0 EpisodesSeason 1 12 EpisodesSeason 2 12 EpisodesSeason 3 12 EpisodesSeason 4 12 EpisodesSeason 5 12 EpisodesSeason 6 12 EpisodesSeason 7 12 EpisodesSeason 8 12 Episodes 4x1 - Living the Dream 4x2 - Remains to Be Seen 4x3 - Blinded By the Light 4x4 - Dex Takes a Holiday 4x5 - Dirty Harry 4x6 - If I Had a Hammer 4x7 - Slack Tide 4x8 - Road Kill 4x9 - Hungry Man 4x10 - Lost Boys 4x11 - Hello, Dexter Morgan 4x12 - The Getaway Dexter finally believes he understands the beast known as Trinity. But when a ten-year old boy goes missing, Dexter is forced to question everything he’s learned up to this point.