Refusing to collaborate with Dr. Zinberg on blood-transfusion research, an increasingly paranoid Thackery pushes himself to the limit, and beyond, in an effort to “solve the riddle” and beat his…

Barrow can alleviate a debt if he treats one of Collier’s wounded men and also urges Capt. Robertson to buy one of Thomas Edison’s new inventions. Meanwhile, Algernon tries a…

Thackery weighs performing surgery on a former flame, and orders Gallinger and Chickering to experiment on pigs. Barrow goes the extra yard to square a debt. After a bad day…