A strange, alien creature comes aboard Enterprise, and captures several crew members in its cocoon-like web. With her crewmates' lives in jeopardy, Hoshi faces her biggest challenge yet, in trying to communicate with the lifeform, in order to return it to its home planet.

Archer, Hoshi, Travis, Malcolm and Trip have decidedly different experiences during shore leave on Risa. Meanwhile, on Enterprise, Phlox enters his annual hibernation cycle.

Noncorporeal aliens possess the bodies of the Enterprise crew.