Although reasonably action-packed, these final panels of the first episode are really just about establishing which visitors have survived the attack by the Prehistoric savages, and enabling them to reach the actual archaeological monument. They also firmly establish that the Rambler is the leader of the small group and has some sort of a plan to thwart whatever disaster it is he keeps saying is about to destroy the Earth.
With hindsight I realise that what all three of this 'main cast' lacked was eyebrows, something these days I almost religiously draw on all my main characters. As a result I can't help but think that both the Rambler and the older grey-haired survivor look younger than what I actually envisaged.
Hunted amongst the tall rocks of Stonehenge, the surviving visitors must cast aside their concerns over the sanity of the Rambler, and put their trust in him when he says he must alter the Earth's time-line..?