The fourth season of the CBS action-adventure series MacGyver premiered on February 7, 2020, as a mid-season replacement for the 2019–20 television season. CBS renewed the series for a fourth season in May 2019. The season contained thirteen episodes and concluded on May 8, 2020. The series continues to center on the fictional Phoenix Foundation which is a covert organization masquerading as a think tank. It stars Lucas Till, Tristin Mays, Justin Hires, Meredith Eaton, Levy Tran and Henry Ian Cusick.