The gang heads to the African jungle on Earth-2 to rescue Harry from Gorilla City in episode 3x13 "Attack on Gorilla City".
Source: Fredyck Images — Twitter
The group brings the Beast to Fillory and attempt to kill him in episode 2x03 "Divine Elimination". Eliot chases King Idri into the forest but a magic blackout occurs before he can win the duel in episode 2x09 "Lesser Evils".
Source: Chris Fisher — Instagram
Kara and Alex track Jeremiah to the woods where he is meeting with Lillian Luthor and the real Hank Henshaw in episode 2x14 "Homecoming".
Source: Sandra Olsson — Twitter