You can find this episode on major streaming and digital platforms: Available on Apple TV and Google Play .
A kidnapper dressed as a clown re-emerges in Boston after more than 20 years. The squad must solve the abduction of a young boy named Kevin Silver by digging into "The Summer of the Clown" files from 1988. [S4E13] Tears of a Clown
Pay attention to the "weather vane" clue in the kidnapper's taunting video, which helps the team track the suspect to an old car wash business. You can find this episode on major streaming