Breakout from Planet Earth

Poor BlizBlazz and ZupZorp...they have been trapped on Earth since their family visited in their UFO. The UFO was not prepared for Earth's atmosphere and fell apart as the UFO zoomed through the sky. Their parents became separated and have tried to keep in touch with the twins through encrypted messages and other forms of communication, including crop circles. However, the twins can never seem to figure out the messages and don't know their math well enough to know where to meet up with their parents. Your goal is reunite the alien family before any humans capture them.