Could not find any definition of phrase "initial series"
Usage examples of "initial series".
Any DSS agents who had survived the initial series of attacks would know to head there immediately and reestablish contact with Black Tower, Gaza Station, or what might be left of the joint operation command, at PLC headquarters.
The rapid initial series of accelerations were obviously designed to pin down the personnel of the ship.
After an initial series of switchbacks, the highway had widened to four lanes and assumed a straight slope downhill.