Ahaz, one of the most tyrannical of the Davidic kings, aligns Judah with Assyria and begins an aggressive program to force cosmopolitanism down the throats of the Judahites. A new prophet, Isaiah, appears on the political stage and delivers the famous and controversial prophecy of "Immanuel."

Caleb introduces the career and reforms of Tiglath-Pileser III and Ian gives an introduction to the history and theology of the Book of Isaiah.