The meet-up occurs during Casino Week aboard The Odyssey when “unexpected guest Athena Grant (Bassett) suspects two passengers are targeting the ship’s vault. Enlisting Max’s help, Athena raises the stakes in a dangerous game where not everyone will end up with a winning hand,” per the episode’s logline.

Ryan Murphy's 'Doctor Odyssey' and '9-1-1' plan crossover episode as Angela Bassett's Athena Grant boards the cruise ship.

ABC has announced that the Ryan Murphy shows 9-1-1 and Doctor Odyssey are set to have a crossover episode this coming March.

The epic episode will air on March 20 at 9 pm E.T. on ABC All aboard! Ryan Murphy's two worlds are setting sail. On March 20, fans will see their favorites from 9-1-1 climb aboard The Odyssey in an epic crossover episode with Joshua Jackson's Doctor Odyssey.

"9-1-1" star Angela Bassett will appear on the March 20 episode of "Doctor Odyssey," TheWrap has learned. The two ABC shows are both Ryan Murphy productions. "Doctor Odyssey," which stars Joshua Jackson as cruise ship doctor Max Bankman,