extreme risk
When an aggressive alien vessel attempts to steal one of Voyager's probes, Janeway gets involved in a 'space race' to design and build a ship capable of rescuing the probe from its resting place. Torres' crewmates are alarmed when she repeatedly engages in reckless activity including orbital skydiving which threatens to destroy the captain's plans.
in the flesh
The U.S.S. Voyager discovers that Species 8472 has created a habitat simulation of Starfleet's San Francisco Yards, and are training their own to pose as humans to eventually invade Earth.