Mae'r heddlu yn sylweddoli bod merch ifanc arall wedi'i chipio wrth glywed bod Megan ar goll. The police realise another young girl has been snatched when they hear that Megan is missing.
51 o funudau
Gweld holl benodau Craith
Drama dditectif ddwys llawn diregelwch a thensiwn.
