Wetworld
When the TARDIS lands in the swamps of the planet Sunday, the Doctor leaves Martha in order to find help, but the wildlife in the swamps, which seemed harmless at first, begins to assume a more menacing appearance.
When the TARDIS lands in the swamps of the planet Sunday, the Doctor leaves Martha in order to find help, but the wildlife in the swamps, which seemed harmless at first, begins to assume a more menacing appearance.