A special forces recon unit was a on secret mission when their helicopter crashed in the middle of the Vietnam jungle. The unit survived but not the pilot. With the mission scrubbed you have to make to back to the extraction zone and back to safety before the enemy tracks you down and captures you.
Your unit is trying to get to the extraction zone and they are being tracked by the enemy. Each turn your unit and the enemy randomly draw a number of colored d6 in specific order and place them on the player and enemy cards. Depending on the color of the die drawn, will determine any extra bonuses you or the enemy receive. Your squad must defeat the enemies dice to move to the next jungle terrain card. Each move you make can add or delete to your supplies "dice". It is a race to see who can get to the extraction zone first. If the enemy reaches the EZ first, your unit is captured. If the unit reaches the EZ first, you win. Your unit has special abilities that can be used one per game so be careful when using them.
-description from designer