On Star Trek: Discovery Season 2 Episode 4, Number One (Rebecca Romjin) is the newest addition to the Discovery crew.

On Star Trek: Discovery Season 2 Episode 4, Reno (Tig Notaro) pulls out the big guns as she joins the Discovery as Chief Engineer

On Star Trek: Discovery Season 2 Episode 4, Stamets (Anthony Rapp) and Tilly (Mary Wiseman) discuss her recent experience with psychic fungus

On Star Trek: Discovery Season 2 Episode 4, Stamets (Anthony Rapp) is concerned by the effect May's plan is having on TIlly (Mary Wiseman)

On Star Trek: Discovery Season 2 Episode 4, Owosekun (Oyin Oladejo), Saru (Doug Jones), Pike (Anson Mount), Detmers (Emily Coutts), and Burnham (Sonequa Martin-Green) brace for an encounter with an unknown entity.

On Star Trek: Discovery Season 2 Episode 4, Reno (Tig Notaro) returns as Chief Engineer.

On Star Trek: Discovery Season 2 Episode 4, Number One (Rebecca Romijn) joins Captain Pike (Anson Mount) aboard the Discovery as a mysterious sphere threatens the ship.