4TH REPUBLIC follows governorship aspirant Mabel King (Kate Henshaw) in the aftermath of a violent and fraudulent election that results in the death of her campaign manager Sikiru (Jide Attah).

As the search for the killers unravel, Mabel goes on to challenge the decision that declares incumbent governor Idris Sani (Sani Mu'azu) as winner of the election. Both the election petition tribunal and murder investigation intersect to explosive results.