MESOTHELAE - PRIMEVAL

Une animalie s'ouvre dans le métro de Londres et des centaines d'araignées géantes du Carbonifère terrorisent la population. When an anomaly to the Carboniferous opened, it let through several hundred giant spiders and one Arthropleura. The London Tube isn't safe anymore. Scared away by light, they go back through the anomaly. Primeval season 1, episode 2.