Wednesday's TV highlights: 'Mr. Robot' on USA

Riverdale When an article written by Alice (Madchen Amick) sparks tensions, Jughead (Cole Sprouse) steps into the role of peacekeeper. Also, Betty (Lili Reinhart) turns to Archie (KJ Apa) for support when she gets a threatening ultimatum. Empire Cookie (Taraji P. Henson) and others try to cover for Lucious' (Terrence Howard) memory problem. Nature A cheetah mother raises five newborns, teaching them how to hunt on the African plains. Dynasty The growing rivalry between Fallon and Cristal (Elizabeth Gillies, Nathalie Kelley) intensifies when they compete to be on the cover of a magazine, while Steven's (James Mackay) former boyfriend suddenly shows up.