Star Trek: Discovery (2017)

S02E04 An Obol for Charon

A perplexing sphere poses a risk to the U.S.S. Discovery while May, in her true form, carries out a scheme that endangers Tilly's life. As Saru confronts a troubling Kelpien reality, his connection with Burnham deepens. Meanwhile, Pike gains fresh insights about Spock from a devoted ally.