Law & Order: Special Victims Unit 15x20 Beast's Obsession Season 15 Season 0 0 EpisodesSeason 1 22 EpisodesSeason 2 21 EpisodesSeason 3 23 EpisodesSeason 4 25 EpisodesSeason 5 25 EpisodesSeason 6 23 EpisodesSeason 7 22 EpisodesSeason 8 22 EpisodesSeason 9 19 EpisodesSeason 10 22 EpisodesSeason 11 24 EpisodesSeason 12 24 EpisodesSeason 13 23 EpisodesSeason 14 24 EpisodesSeason 15 24 EpisodesSeason 16 23 EpisodesSeason 17 23 EpisodesSeason 18 21 EpisodesSeason 19 24 EpisodesSeason 20 24 EpisodesSeason 21 20 EpisodesSeason 22 16 Episodes 15x1 - Surrender Benson 15x2 - Imprisoned Lives 15x3 - American Tragedy 15x4 - Internal Affairs 15x5 - Wonderland Story 15x6 - October Surprise 15x7 - Dissonant Voices 15x8 - Military Justice 15x9 - Rapist Anonymous 15x10 - Psycho Therapist 15x11 - Amaro's One-Eighty 15x12 - Jersey Breakdown 15x13 - Betrayal's Climax 15x14 - Wednesday's Child 15x15 - Comic Perversion (I) 15x16 - Gridiron Soldier 15x17 - Gambler's Fallacy 15x18 - Criminal Stories 15x19 - Downloaded Child 15x20 - Beast's Obsession 15x21 - Post-Mortem Blues 15x22 - Reasonable Doubt 15x23 - Thought Criminal 15x24 - Spring Awakening Benson is assigned a 24/7 security detail when William Lewis escapes from prison and starts killing again; Benson must decide how much she is willing to sacrifice to save a child's life.
