8PM | FREEFORM — Shadowhunters On the series finale, Clary tries to unite Shadowhunters and Downworlders, and makes a big sacrifice after Jonathan’s reign of terror starts, while Alec struggles to help Magnus. 8PM | ABC — The Bachelorette Reunion The Bachelor mansion plays host to 12 former bachelorettes, who reunite for a special (subtitled “The Biggest Bachelorette Reunion in Bachelor History Ever!”) to celebrate the franchise’s 15 seasons.