The Simpsons (1989)

S25E01 Homerland

After attending a convention at the nuclear power plant, Homer begins to behave unusually courteous, raising concerns for Lisa. Sensing something is off, she enlists the help of a serious FBI agent named Annie (Kristen Wiig) to investigate her father's odd behavior. The two team up to uncover the truth behind Homer's sudden change, leading them on a humorous and suspenseful journey filled with twists and turns.