Complex sentence: Seemingly accepting his fate, Riker convinces Kargan to close to a distance of 40,000 kilometers before attacking the "Enterprise" and then tricks Kargan into taking a transponder he got from Worf before being brought aboard.
Split into simpler sentences: Seemingly accepting his fate, Riker convinces Kargan to close to a distance of 40,000 kilometers before attacking the "Enterprise". He then tricks Kargan into taking a transponder he got from Worf before being brought aboard.