Irene Choi

After Ted and Jeanette break up, Barney uses his infamous playbook to Ted find a new date; Lily tries to make a good impression at a gallery opening.

Caroline tries to raise money for an expensive pair of new pants through an online fundraising site. Meanwhile, Max's new smartphone comes between her and Caroline.

Chang gets used to his new job. Britta reacts to a friend being taken hostage in a foreign country.

Jeff competes to earn the group places in the over-booked 'History of Ice Cream' class.

Dean Pelton is asked to lie; Chang auditions for a stage adaptation of "The Karate Kid."

Shaun is ready for the next step with Carly; a patient must decide on a treatment that could save her life or possibly destroy her marriage.