As their expenses continue to mount, Marshall and Lily decide to sell some of their possessions online. Barney and Abby (guest star Britney Spears) go to the bar to flaunt their relationship in Ted's face. Barney attempts to anger Ted ...
Taken aback by his mother's wedding announcement, a young man returns home in an effort to stop her from marrying his old high school gym teacher, a man who made high school hell for generations of students.
Robin's musical past emerges again as the group learns of someone named Simon from Robin's past. Barney searches frantically for more Robin Sparkles memorabilia.
When LexCorps accidentally unleash a murderous creature, Doomsday, Superman finally meets his greatest challenge as a champion. Based from the award-winning "The Death of Superman" trilogy.
When Barney's love life is sabotaged by a mystery woman, he turns to tournament bracketology to narrow down the field of 64 women with the most cause to hate his guts.
Ted asks his doctor on a date and his friends try to discourage him from going out with someone he sees regularly recalling their own horror stories of bad experiences.