Ep 29. Raiders From Outer Space

No sooner are the travelers freed from the clutches of the Curator in the far future than they're in trouble again - they land in the middle of the Mahdist War near Khartoum, April 2, 1883. They no sooner evade skirmishing Sudanese Muslims and British troops than they encounter... aliens? Doug and Tony must help British troops defend their fort against the Mahdists, and then they have to learn what the aliens want and figure out what to do about it. And the aliens seem capable of influencing the operation of the Time Tunnel itself.