“There Is a Tide…” is the 12th episode of the 3rd season of the TV show “Star Trek: Discovery” and follows “Su’Kal”.

Osyraa (Janet Kidder) has taken control of the USS Discovery and uses a ruse to penetrate Federation headquarters. Michael Burnham (Sonequa Martin-Green) and Book (David Ajala) must use a transwarp tunnel to be able to reach the starship and land inside it. Osyraa proposes a treaty to Admiral Charles Vance (Oded Fehr).