The Children of Hamlin

Every Starfleet officer knows of the Hamlin Massacre, of how the tiny Federation outpost of Hamlin was destroyed, its entire adult population mercilessly slaughtered and the colony's children abducted by Choraii invaders who attacked with a ferocity and speed that outmatched their Starfleet pursuers. Now, 50 years later, the Choraii ships have reappeared, but this time the Federation is better prepared, with the starship Enterprise standing at red alert.