Complex sentence: Rick Berman, Robert Hewitt Wolfe and Ira Steven Behr originally expected to open Season Four with the two-part adventure, postponed from the end of Season Three, that ultimately became "and".
Split into simpler sentences: Rick Berman, Robert Hewitt Wolfe and Ira Steven Behr originally expected to open Season Four with the two-part adventure postponed from the end of Season Three. The original plan was to begin with the episodes that ultimately became "and".