Brave Witches Temporada 1 Episódio 5

Shimohara, Georgette and Hikari are out on patrol when they find the whole lake near the base has frozen over! Its an ice Neuroi! They engage the enemy, but its too cold, and freezes their units solid. The Neuroi then proceeds to freeze the entire base! With no one else able to launch, its up to the three of them to take out this frozen foe.