The fifth season of Ang Probinsyano, a Philippine action drama television series, premiered on March 15, 2018, on ABS-CBN's Primetime Bida evening block and worldwide on The Filipino Channel and concluded on September 21, 2018, with a total of 135 episodes. The series stars Coco Martin as SPO2 Ricardo Dalisay, together with an ensemble cast.
The fifth season of Ang Probinsyano chronicles Cardo and Vendetta's struggle against corruption in the larger Philippine political arena. Vendetta not only has to fight the Renato Hipolito-backed terrorist group Kamandag, they are also up against a gun-running ring operated by the Vice President of the Philippines, Lucas Cabrera.
Hipolito and Cabrera, beyond being from the same political party, have joined forces to combat Vendetta and to secure for Hipolito the top spot in the midterm senatorial elections. Hipolito intends to use the top senatorial spot to catapult him to the presidency in the next presidential elections. Cabrera, on the other hand, wants the Senate to be dominated by his partymates, with Hipolito leading the charge as Senate President, in order to ensure that Cabrera will win the presidency in the next national elections unaware of Hipolito's intent to double-cross him to secure the presidency for himself.
Plot
Marco (J. C. Santos) formally introduces Alyana (Yassi Pressman) to the rest of the Cabrera Family. Marco's half-brother, Congressman Brandon Cabrera (Mark Anthony Fernandez) is supportive of the pair's relationship. On the other hand, the Vice President of the Philippines, Lucas Cabrera (Edu Manzano), is concerned about how his son's relationship with Alyana will adversely affect his bid for the Presidency in the next election. His spouse, Second Lady Catherine Cabrera (Alice Dixson), feigns acceptance of Alyana, if only to stop Marco from throwing a fit. Cardo (Coco Martin) continues to woo Alyana, but is finally rebuked when Alyana returns her wedding ring to Cardo.
General Olegario (Angel Aquino) sought the help of General Borja (Jaime Fàbregas), despite the objections of Romulo (Lito Lapid), Ramil (Michael de Mesa) and Cardo. Unbeknownst to General Olegario, her secretary, James (Jay Gonzaga), was tailed by Major Catindig (Sid Lucero). Catindig then informs Director Hipolito (John Arcilla), who in turn, orders Alakdan (Jhong Hilario) to perform a hit on Vendetta. Vendetta survived the attack on their hideout but at the cost of both Kalabaw () (Rey Solo) and Jimboy (Jayson Gainza) who sacrificed themselves to make their escape. During the attack, Director Hipolito arrived to personally take down Romulo, seeing an opportunity to raise his profile again. However, Romulo survives his wounds and is immediately brought by the CIDG in a hospital where he laid in critical condition. However, Hipolito manages to wrest control of the supervision of Romulo from CIDG and Vendetta must race against time in order to extract Romulo from the clutches of Director Hipolito. Meanwhile, when Alyana decided to visit Lola Flora and her family, Marco is against her decisions thinking she was going to Cardo's family causing the two to have an argument which resulted Alyana to leave but is unaware of Marco's violent behavior.