Sa Dulo ng Walang Hanggan

In 1912, where Don Teodoro (Ronaldo Valdez), the President Municipal of Bulacan, announces the engagement of his eldest son, Alfonso (Bernard Palanca), to Angelina (Claudine Barretto).^[1] The marriage is arranged under difficult circumstances: Angelina’s mother, Consuelo (Tetchie Agbayani), persuades her daughter to accept the proposal in exchange for the release of her father, Sebastian (Spanky Manikan), a bandido accused of killing an American supporter.

Unknown to many except to Minerva (Carol Banawa) and young Carmela (Shaina Magdayao), Angelina's love is reserved only for one man, Benedicto (Carlos Agassi), Alfonso’s younger brother, with whom she shared a youthful romance before Benedicto was sent away to Spain at Don Teodoro’s command. However, upon his return, Angelina and Benedicto’s feelings are rekindled, creating a conflict between familial obligation and personal devotion.

Alfonso, whose ambition and jealousy define much of his character, becomes determined to claim Angelina as his own. He takes deliberate steps to separate the couple, resorting to increasingly manipulative and destructive measures. As the situation escalates, Angelina is left to reconcile the competing demands of loyalty to her family and the persistence of her forbidden love.

The series later transitions to 2001, when Angeline (also portrayed by Barretto) celebrates her engagement to Hector (Troy Montero). As a gift, her parents, Norberto (Robert Arevalo) and Corazon (Boots Anson-Roa), present her with a rest house in Bulacan. Unknown to them, the property is the same place where Angelina, Benedicto, and Alfonso’s story once unfolded.

Angeline is revealed to be the reincarnation of Angelina, and her presence in the house reawakens echoes of the past. The link between the two timelines is understood only by Lola Carmela (Gloria Romero), who is now 97 years old—the sole living witness to the events of the past—and who possesses a locket containing the history of the ill-fated romance. Through Lola Carmela, the tale of Angelina and Benedicto resurfaces, intertwining with the present lives of Angeline and Benjie. Alongside this is the looming threat of Alfonso’s curse, raising questions about who he is in the present timeline and how his return may affect the lives of Angeline and Benjie.

The narrative centers on themes of love, betrayal, and destiny, exploring whether the unfulfilled romance of Angelina and Benedicto in the early twentieth century can find resolution through their reincarnated counterparts in the modern era.

• Sa Dulo ng Walang Hanggan is based on a 1980 serialized komiks novel by Vincent Kua, Jr. entitled Huwag Kang Lumuha, Gabing Mapanglaw^[2]
• Rico Yan was originally going to portray Benjie/Benedicto but turned down the role due to his commitments, which the noontime show Magandang Tanghali Bayan. The role went to Carlos Agassi instead. After turning down the role, however, Yan was offered again to be part of the soap, this time playing the part of MJ/Miguel Jr. It was reported that upon his return from Lenten vacation in Palawan, he was to start taping for the series. Unfortunately, he died while on vacation on March 29, 2002. Leandro Muñoz took over the role intended for Rico.
• Sa Dulo ng Walang Hanggan is considered to be the first teleserye to change the genre that viewers have not yet encounter. The production team are the first to create a reincarnation or multiverse theme ever.
• Sa Dulo ng Walang Hanggan was also aired on ABS-CBN's local radio stations from 2001 to 2003 throughout its run. The radio version airs the episodes from the previous evening that have already aired, thus serving as a rerun.
• The two preceding series in the timeslot that the series was airing, Mula sa Puso and Saan Ka Man Naroroon, also had Claudine Barretto as the main protagonist.
• The stair scene where Sally (Mylene Dizon) fell onto the stair became one of the hit iconic scenes in TV history^{[citation needed]} and viewers still remember and talk about it.
• Mylene Dizon was typecast as main antagonist and was recognized by many viewers as the one who made Claudine Barretto's life miserable.
• Claudine Barretto wore a necklace given to her by a fan as a sign of gratitude.
• Sa Dulo ng Walang Hanggan had a stellar cast and used Gladys Reyes while she was still casting in Recuerdo de Amor in 2002.
• In the 2002 film Super B, Rufa Mae Quinto's character screams at her nemesis, played by Mylene Dizon, "Dami mo nang ginawang kasalanan kay Claudine!" ("You already did so many sins against Claudine!") in reference to the character Sally in the TV Drama.
• Dianne Dela Fuente, fresh from the hit teleserye Pangako Sa 'Yo, replaced Carol Banawa as Minerva in the latter part of the series. Minerva wasn't seen again until the halfway through the series and by the time Minerva was needed, Carol Banawa was busy with her new teleserye Bituin.
• In a podcast, Ms. Keiko Aquino, one of the writer said that Sally was not really the planned to be Alfonso's reincarnation. They really planned to make viewers think who is the reincarnation of Alfonso.^[3]
• Sally's death in finale episode was an audience suggestion. The suggestions came from a dial since ABS-CBN make a dial promo about what audience want Sally to get her karma. Many viewers suggest that Sally must fall from a building and it was just chose of production team instead of the first plan that Sally will be electrified.
• Sa Dulo ng Walang Hanggan is considered to be one of the longest running teleserye of ABS-CBN until now and their second teleserye project after the first teleserye Pangako Sa'Yo.
• The series' theme song was used again for another teleserye called Walang Hanggan of ABS-CBN also. Helen Gamboa was also part of the series.
• This is the last television series of Ricky Belmonte, Don Laurel, Dennis Trillo (in ABS-CBN before moving on GMA) and Nestor De Villa. Belmonte died in 2001 but somehow, his character still have an exit through killing in 2002. Laurel is going to migrate in Canada with his family in 2002. So his character was decided to be killed and gave an exit.

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