Another signal appears, this time over Saru's home planet, Kaminar. Discovery immediately gets caught between the plight of the Kelpiens and the seemingly predatory species, the Ba'ul. But like most things, there's more going on than meets the eye. 

Hannah Spear returns as Siranna, Javier Botet plays the Baul, and David Benjamin Tomlinson returns as Linus and as a random Kelpien.

The Sound of Thunder was directed by Douglas Aarniokoski and written by Bo Yeon Kim and Erika Lipoldt.