Having finally defeated Master Shredder, Leonardo and the gang head back to their secret batcave to celebrate the victory. Although it was a long, strenuous battle, they find their spirits have been lifted to enormous heights by the victory over their long-time nemesis.
Master Splinter suggested they invite some friends over to join in the festivities. Michaeangelo, of course, agreed immediately. They all shared drink, laughter and dance for a good portion of the evening.
However, the evening has brought unforseen events and some very unwelcome guests.
Now they must call upon every resource they have available to survive what has become a terrible nightmare... even old friends.