MANILA, Philippines - Coco Martin and Susan Roces, who first worked in the teleserye Walang Hanggan, will reunite on Dec. 21 for a special episode of Wansapanataym Christmas Special. In the story titled Simbang Gabi, Coco will portray the role of Caloy, a young policeman who is forced to take care of his Lola Fenny (Susan), a devotee of the Simbang Gabi tradition. Through the help of a magical star, Caloy is able to get everything he asks for including the promotion he has always wanted. However, Caloy starts to feel that his grandmother is getting in the way of his plans because she is taking too much of his time. Will Caloy finally learn to give importance to Lola Fenny when he discovers the secret behind her mission to complete the nine mornings of Christmas? Wansapanataym Presents Simbang Gabi is directed by Malu Sevilla and airs Saturdays at 6:45 p.m. after Bet On Your Baby on ABS-CBN.