Episode 3.03 Trailer is out! It is called ‘Far From the Tree’, the episode will be taking Supergirl away from Earth and to the Mars. The trailer shows that she is joining the Martian Manhunter on a journey to Mars.
The episode is slated to air in October with the following description:
Eliza (guest star Helen Slater) throws Alex and Maggie (guest star Floriana Lima) a wedding shower, which causes Maggie to reach out to her estranged father (guest star Carlos Bernard). Supergirl joins J’onn on a personal mission.