Detective Investigation Files IVSeason 41999 · 50 episodesEpisodes1Episode 12Episode 23Episode 34Episode 45Episode 56Episode 67Episode 78Episode 89Episode 910Episode 1011Episode 1112Episode 1213Episode 1314Episode 1415Episode 1516Episode 1617Episode 1718Episode 1819Episode 1920Episode 2021Episode 2122Episode 2223Episode 2324Episode 2425Episode 2526Episode 2627Episode 2728Episode 2829Episode 2930Episode 3031Episode 3132Episode 3233Episode 3334Episode 3435Episode 3536Episode 3637Episode 3738Episode 3839Episode 3940Episode 4041Episode 4142Episode 4243Episode 4344Episode 4445Episode 4546Episode 4647Episode 4748Episode 4849Episode 4950Episode 50
