Tenable

After hearing the category for a round, the captain designates one teammate to play it. Each teammate may only play one round and may not confer with anyone else.

The contestant must give at least five correct ("tenable") answers in order to qualify for the Final and may stop after any correct answer at or beyond this point and bank any money earned. If the contestant completes the list, they automatically advance and bank the money. Correct answers are displayed on a board as they are given and each round ends with the revelation of any not given.

For most questions, the host provides a brief explanation of what answers can and cannot be accepted as correct. As of the 2020 Christmas special, some rounds begin with a list of 10 clues displayed on the board, one for each of the required answers. If a contestant's answer is correct, it is shown in place of its corresponding clue.

Two forms of assistance are available until the fifth correct answer has been given:

• Nominate: The contestant may choose one teammate to provide an answer, then either accept or reject it at their discretion. There are only three nominates for the entire team for the entire game.
• Overrule: The captain may reject an answer they believe to be incorrect and give a different one in its place. The contestant's answer is tested first; if it is correct, they are not credited with that answer or awarded any money. The captain can only use the overrule once per round.

The contestant is also given one life which allows them to continue without penalty at any time after giving an incorrect answer or being overruled in favour of one given by the captain. A second such mistake ends the round immediately, eliminates the contestant from the game and forfeits any money earned during the round.

The captain plays this round under the same rules as the first four, with the following changes.

• There is no overrule option.
• After any correct answer that awards money, the captain may choose to reinstate one eliminated teammate in exchange for dropping back one step on the prize ladder.
• Reinstated teammates may not be nominated to provide answers and will only advance to the final if the captain either completes the list or chooses to stop.
• At the end of this round, any teammates who have not been reinstated are permanently eliminated from the game.
• Regardless of the outcome, the captain advances to the Final.

The remaining contestants/full team select one of two categories and are given a list pertaining to their choice. They must give one answer at a time, starting with the captain and then proceeding through any others in the order that they played the first four rounds. Nominates and overrules are no longer in play and no conferring is allowed. Any contestant who gives an incorrect answer is immediately eliminated from the game. If the team completes the list, they win all the money they banked in the first five rounds; otherwise, they forfeit all the money. The maximum potential jackpot is £125,000; this is achievable by banking the full £25,000 in each of Rounds 1 to 5. If the team fails to bank any money in Rounds 1 to 5, the Final is played for a default prize of £500. As of Series 6, if the team loses in the Final, each member receives a show-branded tea towel as a consolation prize.

In the All-Stars version, the celebrities receive £1,000 for their charities if they fail to complete the final list. In the 2019 Christmas special, they receive £2,500 for their charities.