TUGS is set in the 1920s in the fictional Bigg City Port, the largest harbour in the world at the time. There are two
teams of tugs in the harbour, the STAR FLEET and the Z-STACKS. They were both rivals and would strive to get contracts from
large firms, like the steel works and ocean liners that would visit the port from time to time. While the STAR FLEET concentrated
on the values of loyalty, bravery and friendship, the Z-STACKS would restort to brute strength and devious plans to win contracts.