C.I.D. - Season 1 Episode 669

Three kids can be seen running away from their captor. Next day CID team is called to a hospital, where the doctor informs them about those same kids that they were brutally beaten up and left to die but a man brought them to the hospital in time. The man tells them about the place he found them. The team starts searching that place for clues but instead they find a dead body. Who were these kids running from? Whose dead body did the CID find?