When Captain Lorca assigns Burnham to study the newest member of Team Discovery's biology for weapons purposes, she finds the missing link to spore tripping. But when Starfleet orders Discovery to relieve the dilithium mining colony Corvan II from Klingon atttack, it's up to Burnham and Stamets to test their mushroom theory, and successfully jump to conclusions. Will they get there in time? Is Tilly still drooling? Are the writers of Star Trek Discovery sending Ben and Adam messages? It's the episode that shoots first, and replicates later.